Thursday, November 1, 2012

KEY TO THE FARSIDE SPECIES


KEY TO THE FARSIDE SPECIES

By Ida Swenson, Palmyra, Virginia

 

Using the Farside cartoons as the source of your ‘specimens’, identify their scientific names using the following key.  Write the numbers you use to get to your answer.

 

1.         If in the animal kingdom, go to 2.

            If a protist, Amoeba proteus.

2.         If warm-blooded, go to 3.

            If cold-blooded, go to 5.

3.         If covered with feathers, Cathartes aura.

            If covered with fur, go to 4.

4.         If found near water in North America, Castor canadensis.

            If found on dry plains in Africa, Camelo pardalis.

5.         If it has an exoskeleton, go to 6.

            If it is a vertebrate, go to 8.

6.         If it is an arachnid, Centurus sp.

            If it is an insect, go to 7.

7.         If it is a wingless social insect, Pheidole sp.

            If it has wings and likes the dump, Musca domestica.

            If it likes grapes especially well, Polychrosis viteana.

8.         If it has gills and lays eggs in water, Salmo salor.

            If it lays eggs on land and has scaly skin, go to 9.

9.         If it is legless and poisonous, Sistruras horridus.

            If it has legs and lives in Florida, Alligator mississippiensus.

 

a.  vulture _1, 2,3  Cathartes aura__________________

b.  “jellybug”  _________________________________

c.  giraffe _____________________________________

d.  amoeba ____________________________________

e.  scorpion ___________________________________

f.  beaver _____________________________________

g.  salmon ____________________________________

h.  alligator ____________________________________

i.  rattlesnake __________________________________

j. house fly ____________________________________

k. ants ________________________________________


Picture Farside cartoons here each with the appropriate animals.  Or maybe you wish to use other cartoons from the newspaper?   (Snoopy, Garfield, rat, pig, etc, etc )   Be sure to use various types of animals that even a novice could answer basic questions about them.  
Perhaps this activity is used as a summary after you have studied the animal kingdom.  Or modify it when you are studying taxonomy to give the students practise using a key.
 



KIDNAPPING!! MRS. SWENSON WROTE


 

KIDNAPPING!!  MRS. SWENSON WROTE

 

    When Mrs. Swenson came into room 400 this morning, Miss Frizzle was GONE!!   Where she should have been, there was a ransom note.   The note said:

            " Don't look for the friz!!  And don't call the police!!!   I will call later with the

 ransom demand.       (signed)  The Friznapper"

 

   Some clues were found near the ransom note.   They included sand, skin, hair, white fabric, a feather and a white powder.   Fingerprints were found on the ransom note, and of course the writing of the ransom note can be examined microscopically.   Who took her?   Where did they take her?   And how can we get her back?

     At each lab table you will find some known samples of sand, skin, white powder, fabric, feathers, and hair.   You will get one very small sample of the clues for only a very short time to compare to the known samples.   It is very important that you make careful observations of the known samples to determine the best way to identify them.   You should also ask the block teachers what they know about the crime.   Using what you have found out about the clues, you will develop a plot of what you think happened, identifying the characters, any foreshadowing, the rising action and climax.   Resolve the story if you can.   This may be written as a story, poem or TV show.    Time's wasting!!  We better get started figuring out the clues.

 

DIRECTIONS:

   Each lab table has slides of the known samples.   Each team member should become an expert on one or more kinds of known samples.   They should write their observations below.   It is important to have the observations recorded as each piece of evidence will be at your table for only a few minutes.   Your observations will make it faster to narrow the search.  Each person at the table should be able to compare and confirm the identity of the clue.

 

 

 

 

 

 

 

 

 

Sample: _____________________­­_              Sample: _____________________________              

 

 

 

 

 

 

 

 

Sample: ________________________           Sample: ____________________________            

 

 

 

 

 

 

 

 

 

 

Sample: ____________________________ Sample: _____________________________             

 

 

 

 

 

 

 

 

 

Sample: _____________________________     CLUE: ___________________________

 

The fabric is ________________________________________________

 

The sand came from __________________________________________

 

The white powder is __________________________________________

 

The feather is from _________________________________________

 

The hair is from ____________________________________________

 

The skin is from __________________________

 

Witnesses told us:

 

 

 

 

 

We think the crime was committed by ________________________________________

 

We think the motive was  _________________________________________

 

We think Miss Frizzle was taken to _________________________________________

 

Now write your story!

(You may have to put some of your observations of samples, etc, on your own paper as well.)

 

 

Ida Swenson, 2001, idathefriz@gmail.com

THE SMART STUDENT


THE SMART STUDENT

By Ida Swenson
 

   The first good sign of a smart student is occurring right now- you are looking for help.  Being a smart student has little to do with a person’s IQ.  Being a smart student has everything to do with making your effort more efficient, following directions, and seeking help when you need it.  The tips you will get from this short article may be applied at any level from grade school through college and beyond.   They are only as good as the time and effort you put into them.  There isn’t an ‘easy’ way to get very good grades at every level, but there are some tricks for making your effort pay more dividends.  Don’t let someone else tell you this is the ‘lazy’ way to grade success- this is the SMART way to success.


STUDY SMART!!

 

   Are you and your friends all the same?  Of course not!  You are each unique individuals with unique abilities.  What works for one person doesn’t necessarily work for another person.  Some people study better with another person while some need to be alone to absorb the material.  Some people study better with loud music or people talking, while others need quiet.  Maybe you learn best curled in a comfy chair with your cat in your lap, but someone else needs an upright, feet on the floor position at a desk or table.  Tracing the important things with a finger helps some, but others need to hear the information to remember it while others may only have to read it a couple times to remember.  If you can figure out the ways you learn best and use those methods, you will be miles ahead in getting the most learning from your study time.  Ask your school guidance counselor or librarian if they have a learning styles tutorial or quiz you can take.  This will be a series of questions which will help you identify your individual learning styles.  Are these questions for a grade or to compare with your friends?  No, so answer them as honestly as you can or the results won’t help you.  (Yes, styles plural because everyone learns best in several different ways.)  For the fifteen minutes you spend taking the learning styles quiz, you can increase your study efficiency immensely.   Hopefully, with your scores, you will get a list of suggestions of study methods/./.

   If you can, do your own scientific study of these variables or methods.  A good way to do this is to study for quizzes in different ways and compare your results as honestly as you can.  DO NOT experiment when a big test is at stake.  Go with your known best method for studying for any big grade.  Of course, if you want to be very scientific, you’ll only change one variable or method at a time.  For example, study at your desk with soft music using split page notes one time, then at your desk with loud music using split page notes the next time.  Only one variable, the volume of the music, has been changed.  My suggestion – study an SAT vocabulary list for fifteen minutes, then have someone quiz you.  Study a new SAT list (same number of words) for fifteen minutes with one variable changed, then have someone quiz you.  Only do two lists at a time, because the longer you study, fatigue becomes a factor.   Which brings us to the types of variables.

  TIMING is everything.  Are you a morning, afternoon or evening person?  If your only thought after 9 PM is that bed, use it!  Get up at 5 AM and study then for peak performance.  If you can study very well at school, but not at home, use your study halls for study, find a teacher who will let you use their room after school or at lunch, or hang out at the library.  If your friends don’t understand, what kind of friends are they?  Perhaps it’s time to find friends that have the same desire for good grades that you have.  Learn how long you can study efficiently, then take a break.  Promise yourself a break that’s at least 10% of the time you have been studying.  Do jumping jacks, run up and down the stairs, or chase your dog to get the blood flowing back out of your seat and into your brain.  Stretch, get a drink or snack, and get back to the books. 

   Set goals for what you need to accomplish in your study time and write them down.  Prioritize what needs to be done.  Finish the assignments due tomorrow first, then start on more future projects and studying.  Start with the things which can be done quickly for the inspiration of crossing them off your list.  One of the most common variables among highly successful people is their ability to set achievable goals for themselves. 

   Another other important aspect of timing is being disciplined to study as you go through a course, not at the last minute.  Start the reading the day you get the book, using the tips further on.  Do you have a busy schedule?  Use whatever time you can get to study.  Many athletes find they get better grades while they are playing a sport because they know they have to use every minute.  They do their assignments and studying ahead of time knowing there may not be enough time later.  They do their socializing and playing on the field or the bus.

  Last but not least, be aware of when you are no longer studying with efficiency.  It may be your brain is full of that subject and you need to switch to something different.  If you have been working math problems, do some reading instead.  If you have been writing an essay, answer science questions, read your next book report novel or do math problems. You can come back later to what you had been working on.  Take that break or, if you’re really tired, go to bed.  Be sure to set your alarm to wake up early for more study.

   LOCATION makes a difference in your studying.  You should be as far away from distractions as possible.  Television, computer games, noisy friends or other unfinished tasks may lure your mind from the material at hand.  For some, soft music helps their concentration.  As you learn your styles, you will know whether a soft or hard chair is best.  Perhaps a table you can spread out on is better, or a carrel where you are in a small corner will work for you.  Take the games off your computer, shut down the IM, and focus on those tasks you need to be doing on the computer. 

   COMFORT AND GOOD HEALTH are important.  If your seat is asleep, your brain will be focused there.  If you are stuck to the chair or scrunched because you wore short shorts, you won’t be thinking about the subject.  If you are hungry or thirsty, you will have less energy. 

If you never get any exercise, your heart won’t pump the blood to your brain as well.  If you stay up all night watching old movies, you won’t be able to keep your eyelids propped open to listen in class or study.  Eat healthy.  Lots of sugar and grease will affect your body, and guess what?  Your brain is a very important part of that body.  Class time is as important as study time for making sure your body – and your brain- are in peak working condition.

   READ the book only once.  Maybe you have been taught the SQ3R method.  Modify it as follows:   Skim the reading you need to do for the headings and illustrations. Questions should start forming in your mind. Decide on what portion of the reading you will do now, or time limit you have so you have an end in sight.  Take notes on the reading in your own words, NEVER word for word from the book.  You can use your own symbols, minimal words, and drawings.  If you are like me, you may read a couple pages and realize you don’t remember a thing you just read.  Taking the notes prevents that fogginess.  If you copy word for word, you limit the number of times it goes through your brain to just two- in and out.  If you read, think to put it in your own brief method, and write it you have to run the item through your brain five times.  Every time a fact goes through your brain, it deepens the groove that holds it there!   You also ensure that you understand what you are writing down.  This method is also helpful in reading material for writing a paper.  By changing everything into your own words immediately, you prevent accidental plagiarism.  I use a split page method with a word or two on one side, and definitions or explanations in my own words on the other side.  I think of these notes as being cheap flashcards.  These notes will become your study notes for tests. For example, here are some split page notes from a Harry Potter book:

 

Quiddich                     wizard and witch game played on brooms using magical equipment

Snitch                          small gold ball with wings, very elusive

Keeper                         goalie who tries to prevent goals through the hoops  1/team

Bludger                       duty is to try to knock other team off their brooms   2/team

Chaser                         try to get bloggers through hoops to score  2/team

Seeker                         tries to find the snitch.  If successful, it’s an automatic win 1/team

Blogger                       magical balls which must be sent through quiddich hoops for points

 

 REVIEW your notes to study for a test by covering the left side of the page and asking yourself what is written there.  If you get it right, make a check.  When you are finished, cover the right side of the page and do the same thing again.  The night before the test, review them again.  If you study better with another person, ask someone to give you the questions.  If you have a friend studying for the same test, this may help both of you.  When you have done this several times, make new notes of the items you did not know at least a couple times.  This you will review right before the test while the teacher is getting ready to hand out the papers and then tuck it deeply in your bag or book.  (No use getting accused of cheating after you have put in your study time.)    Some people find they remember better if they outline the reading.   Some need to read it aloud to themselves as they write the notes.  The key is, when you use this method, you increase the number of times the information goes through your brain by five just when you take the first notes, as well as increasing the importance of it to your brain.  You decrease the amount of studying you have to do before the test.

  ASK FOR HELP when you need it.  Perhaps as you were reading (and taking notes), you came to something you did not understand.  Put a question mark in the margin next to it and leave space for an answer.  The next time the teacher asks in class if there are any questions, get your hand in the air and ask about that part of the reading.  There is no such thing as a stupid question (unless the teacher just answered it and you weren’t paying attention).  If you don’t understand something, chances are at least half the class didn’t either.  If no chance comes in class to ask, make an appointment to see the teacher, or ask that friend who seems to understand everything.  Now THAT would be good use of IMing. 

  

TEST SMART!!

 

   PREPARE for every test by being sure your body (and your brain) are in tip top shape.  For your brain cells to work properly, they need food, oxygen and rest.  The one food they do NOT need is a lot of sugar.  When you eat a lot of sugar (such as sugar coated cereal, syrup, soda or candy), you raise the insulin levels in your body.  An hour or so later, your blood runs out of sugar for the insulin to work on, and your chemical balance crashes.  The day of a test, start your day with a combination of starch and protein.  This will stick with you much longer than sugar.  Choose an egg and toast, a peanut butter (no jam) or ham sandwich or even a piece of pizza or a hot dog instead of sugary cereal or pancakes and syrup.  French toast would be okay except for any sugary topping.  Don’t skip breakfast ever.  (You may find these tips help you concentrate better in class.  I’ll bet your fourth period grades go up!)  If your teacher or school allows, take a cheese stick, yogurt or sandwich to munch midway through the morning if you have a late lunch. 

  For your brain cells to get enough oxygen, they need a strong blood flow, which comes from a strong heart and good deep breaths.  Sit up straight, get plenty of exercise and take breaks to move around.  If you are in the middle of a test, fidget your legs as quietly as possible. 

   Rest means a good night’s sleep before the test.  Good sleep usually helps more than last minute cramming.  If you can’t sleep well in your own bed due to noise or whatever, find another place to go.  If you have the luxury of a quick power nap mid day, it may put your miles ahead.

  WEAR comfortable clothes that won’t distract you or your classmates from the job at hand.  Cute is fine, as long as it doesn’t leave you cold, stuck to the chair, or make distracting noises.  Be considerate of those around you.

  TAKE what you need to the test.  Extra pens, pencils with good erasers, calculator, extra batteries, tissues, a watch, hard candy (one or two during the test shouldn’t hurt) and a water bottle if allowed should be on your desk where the teacher (proctor) can check them and you can access them quickly.  Be sure your cell phone is off, and that anything resembling a cheat sheet is put far away.  If you are short on space for the test papers, ask if you may put those items on the floor in good view. 

  REVIEW that last list of tricky terms or formulas you identified in your test review (see STUDY SMART) one more time.  If you just crammed formulas or sequential lists into your head, write them on the back of the test paper as soon as you can while they are still ‘in the front of your brain’.  This puts them where you can find them when you need them and is not cheating. 

  READ THE DIRECTIONS before you begin the test.  Check to see if you are allowed to use scratch paper and make sure you have it.  Also, check to see if you may write on the test booklet or use blue pen on the machine answer part of the test.

   LISTEN carefully to the directions from the teacher.  Check page numbers on the question booklet to be sure you have all of them.                          

  SKIM the test, making an outline of it on scratch paper if needed.  Identify which parts will be easiest for you and plan to do them first. 

   READ THE DIRECTIONS of each section again before you begin.  If you do not understand the directions in any way, ask the teacher.  Remember, there is no such thing as a stupid question.

   START the easiest sections of the test first.  Read and answer a page of questions, before transferring the answers to the answer sheet, being careful not to skip any questions.  When you come to a question you cannot answer quickly, mark it with a question mark to come back later.  Give it one more try when you are transferring answers to the answer sheet.

    INCREASE YOUR ODDS on any multiple-choice question by the process of elimination. First read the question and make a guess in your mind of the right answer. If you are allowed to mark the test paper, cross off the choices you KNOW are wrong.  You may choose what you think is the best answer, but mark it as lightly as possible on your answer sheet or mark the question as one you are not sure of.  This way, you can find it quickly to double check it at the end of the test. 

   WATCH FOR TRAPS where there may be a choice similar to the correct one before the correct choice.  Read ALL the choices carefully before you make your decision.   Sometimes there are good choices available as well as the BEST choice.  

   WATCH THE TIME so you don’t spend too much time on any one section.  If you are spinning your wheels on one question, go on to the next one.  Come back later if you have time. 

   USE THE INFORMATION IN THE TEST to help you.  You may be able to get ideas and spelling of historical events from questions and answer choices in the multiple-choice part of the test to use in the essay and short answer parts of the test.  This is not cheating, but smart test taking.  If you marked the questions you weren’t sure of, you will find it easier to locate the question you want to recheck using the information you may have found.

  CHOOSE wisely which essays you will answer.  On your scrap paper, list the parts you know for each question and figure the amount of points you would get for each question, then choose the questions which will gain you the most points. 

  OUTLINE your answers to the essay questions before you write them.  This allows you to organize your thoughts and makes it less likely you will leave something out as you write. 

  CHECK for full completion of all of the parts of the test before you hand it in.  Then, double check to be sure you have something in each and every blank.  A few tests have a penalty for guessing a question wrong, but an empty blank is 100% wrong every time.   If you did a good job of eliminating the obviously wrong choices, you should have a good chance of getting 50 % of your guesses correct.       

 

   Being a smart student means proper preparation, wise choices, and following directions.  If you follow the directions in this article, you should find your grades improved and your sense of accomplishment complete. 

Your Classroom Atmosphere


CLASSROOM ATMOSPHERE

MAKING THE RIGHT IMPRESSION- DOES YOUR CLASSROOM ‘REEK’ OF SCIENCE?

By Ida Swenson

   Everyone knows that first impressions do count.  In the science classroom, first, middle and last impressions count.   What impression does your classroom create?  Does it show that students spend time there and do worthwhile things?   Does it look like a place where science happens?  Do you look like a scientist or at least someone who enjoys science?   Do living things have a place or is your classroom sterile?   The atmosphere is something you breathe.  Can a student breathe science in your room? 

          The first thing most students notice in the classroom is the teacher.  Do you look scientific?   I have worn a lab coat for years.   (Not the same one - and I do take it home frequently to wash it.)   You can get them from a uniform shop or order them.  I embroider my name on the pocket in "Roy G Biv" colors.  Some people think I wear the coat because I'm scientific.   The truth is that I need the pockets and the labcoat saves my other clothes from stains, keeps me warm when the heat goes down and of course supplies pockets.       It is also great fun to dress for the subject matter.  T-shirts that fit your subject matter are always in style.  Ties, skirts, blouses, earrings,--and whatever else fits the topic-- can be found everywhere from T.J. Maxx to K-mart if you keep your eyes open.   If you sew and can find appropriate fabric, use it to create your own Ms. Frizzle aura in the classroom.   Even if you don't sew, a simple, elastic waist skirt can be made with one seam, a 'tunnel' for the elastic, and a hem.  A T-shirt over the top, or a belt will cover the waist; my dinosaur skirt fits sizes 6 to 20.  One of the highlights of my year was when a student excitedly told his Mom at open house, "You should see what she wears!  You can tell what we're studying just by looking at her."   And I knew I had created a monster when a student looked at me in May and asked, "What does what you're wearing have to do with science?"   Do be prepared to be referred to as "The Friz". 

 Of course, the most important thing to wear is a smile.  Enthusiasm for the subject is crucial- if science doesn't excite you, how can it excite the students?   The book, Emotional Intelligence by Daniel Goleman, discusses the importance of positive emotions in enhancing learning and the stifling effect of fear, anger and boredom on learning.  If a student feels threatened by you or another student, fear will shut down his/her mind.  Anger and depression slow learning as well.  If a student is laughing, learning is greater – and the studies show it!  (See the handout on “Fun and Games”.)  Of course, you need to be sure the laughs are appropriate to the learning.  (For more on the role of emotions and learning, start with http://www.cdl.org/resource-library/articles/connect_emotions.php by Candy Lawson, Ph.D.)

           I find it amazing to go into a life science classroom and find the only living things are people.  Countless times during the year I refer to the plants and animals in my room as examples.  They provide a common experiential base for my students.  EVERY science classroom should have a pond.  Collect water, mud, tadpoles and algae from a pond - preferably a nutrient rich cow pond.  Do this as early in the fall as possible.  Any container of at least five gallons will hold your 'goo'.  Keep it near a window, but don't let it get too warm.  (Avoid heat registers.)  Don't worry about an air pump unless you have lots of animals.  It may smell some at first, but have patience - or use the pump for a little bit.  The water will look dirty - that's OK.   It is not 'dirt', it is organisms that will come alive for the students when you use the microscopes.    Do scrape the sides of the tank occasionally to clean off the living diatoms and other algae.  Watch out for the snail eggs!  If your plant population dwindles, add Elodea or Anacharis from another pond or pet store.  (Be sure to ask for native plants, not ‘alien’ exotics.)  I find that they grow better in my pond tank than they ever did in the tropical fish tanks.  If you collect river water, use a high powered pump and air stone to maintain the high oxygen level required by stream organisms.  Your pond should be in balance after a couple weeks, and you won't have to worry about a pump or even feeding the animals.     The main 'problem' I have with the ponds is the constant fascination they hold for the students, and the time we spend together looking at some new thing we never realized was in the water.    If you are fortunate, you will find diving beetles, tadpoles (probably either for bull frogs or green frogs), midge larvae, dragonfly and damselfly nymphs, fairy shrimp, daphnia, copepods, leeches (they are very shy and only show themselves in the spring when it is time to mate), planaria, minnows (I have one that is three years old), etc.  If you like, add some fish food or frozen or fresh spinach (not canned - - too much salt) a couple times during the year.   Be sure the students know you don't have to feed the animals if the pond is in balance, because the producers are making enough food and oxygen for the animals to survive.   The pond should NOT be cleaned, except to occasionally scrape the sides of the tank so light can get in and we can observe the life.  The pond can stay in the classroom all summer without any feeding, machinery, etc.  Organisms I can use in microscope and taxonomy labs are readily available, and many kinds of life cycles can be observed, not just that of guppies.   And it is lots of fun in late summer to 'muck' around collecting pond organisms for your pond.

           Plants are a wonderful addition to the classroom.  Turn your leaky aquariums into terrariums.  Use many kinds of plants, such as cacti.  Spider plants, Schefflera and others will actually help clean the air.   Try to include plants that show asexual reproduction such as budding cacti, spider plants, aloe, etc.  Let the students see you starting stem or leaf cuttings. 

           But you say plants are messy.  Why not put those dead leaves, pieces of stems, and worn out flowers in a compost pile?  You can have the students add their apple cores, bread rinds and rejected celery sticks.  Just take a five gallon bucket, or large dishpan, add leaf litter or a shovel of already started compost, a few red worms if available and start adding organic materials.  Shredded paper will help it to retain moisture.  Stir it frequently or transfer to another container to add oxygen and thus avoid odors.  Keep it moist, but never wet (or you will have an odor).  Avoid broccoli, onions, cauliflower and cabbage as they will also cause aromas you will want to live without.   You will be amazed at the LACK of smell when you maintain it properly.   Of course, you will want to use the compost on all those plants you have.  You will also have available instant examples of earthworms, round worms, mites, millipedes, sowbugs, etc., if you start with lots of leaf litter.  Use it as the best example of nature's constant recycling.  (Whatever you do, DON”T add animal wastes.  I shut down several classrooms with that mistake.)

           Kids love warm-blooded animals.  I try to avoid them in my classroom because many students are allergic to fur or feathers.  If you have them anyway, have the students wash their hands thoroughly after handling them to avoid making other students ill.  If a student is bitten, call your health department to get their instructions.  Be sure they are treated humanely.

          My favorite animals are reptiles, amphibians and insects.   I keep anoles when possible.  They are cheap and afford interesting hypotheses by the students as to why they change colors.  Most reptiles must have a 'heat rock' for proper digestion.   To feed them cheaply, I keep mealworms.  The mealworms require only chicken feed or bran and occasional apple or potato peelings.  They provide an excellent example of incomplete metamorphosis and sometimes of the population control nature will undertake on its own.   I also have found a pet store that occasionally will trade an anole lizard for a few hundred worms.  I always have tadpoles which are taken back to their original pond as soon as possible after they 'frog out'.  I have had a yellow-spotted salamander and a yellow-spotted newt that I raised from tadpoles.  They ate mealworms and earthworms - in fact they survived long periods in a moist terrarium full of leaf litter with no attention other than adding water.  An apple core attracted fruit flies and other insects for them.  If you can get crickets started growing in your room, they also will provide food for your cold-blooded vertebrates.  I have not had much luck, but my pet store owner will eagerly trade with me if I can get them going.  And how about some hissing cockroaches?  They can be kept in a jar or old aquarium with only a ring of vaseline around the top two inches of the glass.  They can also be the subject of experiments on food preferences, habitat preference, etc.  I kept tropical fish for several years, but had to watch carefully for under feeding, over feeding, chemical levels, heat levels, etc., etc.   The tank had to be cleaned out, the fish had to be purchased and then disposed of for the summer.   It was a royal pain in the neck.  Once I started keeping a pond, I rapidly discontinued the tropical fish tank.  

          Many articles have been written about the physical setting in the classroom.  Bulletin board ideas abound in Science Scope, Science for Children, on the internet and trade books.  A subscription or two to Ranger Rick, National Geographic or your state conservation magazine will furnish display ideas.   Show student work.  Is there a place for recognizing outstanding students or team sheets?   Are there cartoons that have to do with your current topic?   Hang posters from the ceiling.   If you have a dropped ceiling with grids showing, use bent paper clips and a hole punch to hang posters next to the ceiling.   Change the posters frequently to reflect the current unit, so even the day dreamers will be learning about science.   A riddler poster can have puzzlers, knock-knock jokes, riddles or other funny quips related to the topic.   A sheet of laminated colored paper that holds interesting things will become a center of attention before and after class.   I am very fortunate  to have a magnetic blackboard, but you can purchase magnetic 'whiteboard' by the roll.   I have even seen magnetic paint advertised, and am thinking about purchasing some for one of the walls in my room.   I use magnets to hold up team sheets, arrows that alert students to what they need to get ready for class, announcements, posters, and game cards to arrange into groups when we study protists and invertebrates.   Cupboard doors can become bulletin boards as well as using brown paper hung by the bent paper clip method.  The advantage to the brown paper is being able to roll it up for next year. 

          What does your classroom sound like?  Are there occasional animal noises?  Do songs about the content make an occasional ‘appearance’?  Is there appropriate background music and noises when you are doing some labs?  Is there laughter to open the mind to new ideas?  Is there a low hum of ideas being shared during labs and group work?    Do your students feel comfortable asking you questions because you will treat their inquiries with respect and occasional good humor?  Do they know that disrespect from you or anyone else in the room is forbidden?  The very quiet classroom is rarely the best classroom atmosphere.

          A set of encyclopedias or the internet can furnish instant answers to questions that come up.  Sometimes a dictionary even helps.  It is good for students to see that you do not know everything, but you do know where to go to try to find the answers.  It is also good for students to understand that scientists do not HAVE all the answers, that there are still mysteries left for them to solve.  A shelf of old National Geographic, Ranger Rick, and Popular Science magazines will provide reading and reference materials for bored study hall students, reports, and borrowing for pleasure reading.  My librarian offered me references and magazines that were about to be discarded.   I also made an appeal for magazines and solicitation calendars to parents each year, as we did a couple projects that necessitate cutting out pictures.  

           Desks are made to be moved into groups for teamwork.  Glassed cupboards should contain the most interesting specimens you can find.  A table, desk, or spot on your lab table can have interesting items with accompanying questions to make the students think.   A carrel can become a science quiz station for students who have completed their work, or for extra credit during a study hall.  Computers should have word processing capability, science games, and a modem to connect your classroom to scientists elsewhere.        

           What is the impression that one gets when they first walk into your classroom?   Is it a place of discovery of real organisms and experiences?   Take inventory.  Maybe your classroom occasionally emanates strange odors.  That is the atmosphere of science.  The eyes, the ears - and the nose - should be able to soak in an atmosphere that shouts, "Science is happening here!"    A large bracket fungus is in the front of my room with a sign that proclaims "The Fungus Rises First In Room 400."   It is a take-off on our school motto, "The Sun Rises First Over East Middle School."   Sure, my room is a mess and sometimes it smells bad, but it's a mess that provides many good experiences and hopefully lots of learning, for all the students who enter it.  

   Ida Swenson lives in Palmyra, Virginia.  She is retired from Binghamton City School District in Binghamton, New York.  You email her at idathefriz@gmail.com.

 

         

Energy Pyramid Simulation


ENERGY PYRAMID SIMULATION

By Ida Swenson

 INTRODUCTION:

  One of the most difficult concepts for students to grasp is the energy pyramid.  Why is a triangle used?  Where does the energy go?  This simulation will help them understand what is happening and gets them out of their seats and involved in their learning.  It assists the learning of tactile/kinesthetic and spatial-visual learners.  If you add some sort of rhythmic music in the background as students are coming forward to take out the ‘energies’, it will help your musical learners.

PROCEDURE FOR OVER TEN STUDENTS:

MATERIALS NEEDED: large writing surface (blackboard) and chalk, corn starch packing peanuts, two gallon clear Ziploc bag, dishpan filled with water

 3x5 cards with ONE EACH of  the following: (Color coding can be useful.)

Sun, grasshopper, grass, frog, snake, hawk

Grass uses 2 ‘energies’ for metabolism

Grass uses 2 ‘energies’ for growth

Grass uses 3 ‘energies’ for reproduction

Grass uses 1 ‘energy’ for moving materials within itself

Grasshopper uses 3 ‘energies’ for metabolism

Grasshopper uses 3 energies for reproduction

Grasshopper uses 3 energies for growth

Grasshopper uses 5 energies to move around and get food

            Frog uses 4 ‘energies’ for metabolism

            Frog uses 5 ‘energies’ for reproduction

            Frog uses 4 ‘energies’ for growth

            Frog uses 11 ‘energies’ to move around and get food

            Snake uses 5 energies for metabolism

            Snake uses 6 ‘energies’ for reproduction

            Snake uses 4 ‘energies’ for growth

            Snake uses 6 ‘energies’ for moving around

            Snake uses 2 energies to molt

            Hawk uses 10 energies for metabolism    Why?

            Hawk uses 6 energies for growth

Hawk uses 20 energies for reproduction: making a nest, hatching the eggs, finding food for young

            Hawk uses 10 ‘energies’ for movement and getting food

            WHAT TO DO:  Fill Ziploc bag with peanuts.  Draw the energy pyramid on the blackboard and make the grass à grasshopper à frog à snake à hawk food chain.  Show where it fits in the pyramid.  Why is it a pyramid?  Hand out the cards, giving more than one card to some students so all are participating.  (Be sure your more distractible students get a hawk card to help them stay on task.   If you have a small class or a very short time, you may want to eliminate the snake from the food chain.)   What is the source of all the energy?  Call the sun to the front of the room.  Which organism can change the sun’s energy into food energy?  Call the grass up.  Will the grass get all the sun’s energy? (No, some goes to outer space, some is reflected, some warms us up and gives light.)  Ask for the each of the grass cards to come forward and take out their ‘energies’ and put them into the dishpan of water (representing heat in the atmosphere).  After each food chain member has used up their ‘energies’ for growth, metabolism, reproduction, and movement show how the level of energies has diminished by holding the bag up by one corner to give the triangular effect. 

 

PROCEDURE FOR TEN OR FEWER STUDENTS:

MATERIALS NEEDED: large writing surface (blackboard) and chalk, corn starch packing peanuts, two gallon clear Ziploc bag, dishpan filled with water, masking tape/labels/or over-the-head placards saying: sun, grass, grasshopper, frog, snake, metabolism, reproduction, circulation and movement.

WHAT TO DO:  Follow the procedure for the large group of students, except instead of handing out the cards, have each student take a label (Sun can have two since ‘his’ part is small.)  The bag of ‘energies’ will be passed from one member of the food chain to another, and the ‘metabolism’, ‘reproduction’, ‘movement and circulation’, and ‘growth’ people will come up and take their energies from each member of the food chain. 

 

CONCLUSIONS FOR ALL STUDENTS:

   After all of the cards (or food chain members) have been used up, discuss with the students the reason why a pyramid shape is most appropriate.  Should it be a narrow, tall triangle, or a long, flat triangle to be most accurate?  Give the ‘rule of thumb’ that it takes ten times as many organisms at each level to support the level above.  (Actually it takes many more.)   Where did the energy go?  Has it been lost? (A good chance to remind them of the law of conservation of energy.)   Show them the dishpan.  Where did the energy go?  Are the packing peanuts still there?  They have just changed form, just as the food energy used by the organism has been changed into kinetic energy and then to heat.

 

ELABORATIONS:  This is a good way to talk about many things, for example the high metabolism energy needs of warm-blooded animals.  It is also a good way to reinforce the importance of food in maintaining metabolism and circulation even in organisms which stay in one place.  The higher energy needs involved in caring for young is very evident.  If you have stickers you can use for each animal in the food chain, modify the activity to make it appropriate for the stickers. 

Activities For Life Science Presentation

Hmmmm.  How to share some of my favorite classroom activities??

AHA!!  I have a blog!!  I can attach them to the blog, then the teachers I am presenting to on Monday can open the documents and get them from my blog site!!  And of course they will carefully preserve my rights in terms of copyright to those documents, but they can use adapt them for use in their classrooms.   And it's not like I 've written the book I promised to write in my retirement!  

Ooops. . .the blog won't let me attach them!!

Hmmm.   How else can I share them with others?   I know!   I will put them on google docs and tell folks to contact me so I can give them access to those private google documents.  And at least I can then get some feedback. . . and at least a thank you if not a check!!!

So, my dear colleagues and fellow life science educators, if you would like access to some of my favorite activities, do email me at idathefriz@gmail.com.   Please do not put my name on any spam lists.   And all of you publishers who can't wait to make a ton of money off of them, please contact me as well.

Please feel free to use my activities, adapt them for your classroom use, etc, but please if you decide to make money publishing them (hysterical laughter follows here!), send me the appropriate checks.

Onward and upward!!!