Showing posts with label natural selection. Show all posts
Showing posts with label natural selection. Show all posts

Monday, January 20, 2020

Evolution Workout Activity - Worksheet and Answer Key

This activity can be used to introduce and review Evolution concepts.  If you like this activity, there are some other "workout" activities on different topics that can be found in this blog at these links:


The Evolution Workout Worksheet and Answer Key can be printed out from here:
https://drive.google.com/open?id=16ol4f4llxwN8Wb2Is13HTDNYYpUFc--j




I am posting the directions here so that you can read through them and get an idea about how the activity works.  I got some great comments from administrators who observed my classroom because the activity engages every student.  Even the students who didn't want to participate were engaged because classmates were seeking them out to get the answers on the worksheet.


SUGGESTED RULES ~ OR HOW THE GAME WORKS


Explain to students that this is a cooperative learning activity, which requires all to participate.  By participating in this process, students will have some feeling for how a scientific community of experts works together to produce solutions to problems, and a body of scientific knowledge.  Each student will become an expert in an area of biology, and will be given an opportunity to share their knowledge with every other member of the class.  When students participate in this activity at the beginning of a course, the activity also serves as an “ice-breaker” and allows students to get to know each other and learn names.  As a role model, the teacher should also participate in this activity.
Each student needs: Evolution Workout sheet, his or her textbook, classroom references, notebook paper, and pencil.  Instruct students to number their paper 1. through 25., leaving enough room to write the answers to each question.
Behavior Expectations ~ for some groups of students, the teacher should explain that this activity requires some movement around the room and sharing of answers.  That this is an activity for serious learning and cooperation, and that students are to behave as professionals.  Disruptive students should not be allowed to ruin this activity and will be responsible for answering all the questions by themselves, if they choose to be removed from participation because of their disruptive behavior.   

1.      The teacher writes a number on each of twenty-five pieces of paper or index cards.  The numbers are mixed up and distributed to the students so that each student gets a number.
2.      The number, that each student receives, tells which question on the Evolution Workout sheet that he/she is responsible for answering.  The answers are expected to be clear and understandable enough to be shared with other students.  Students are to be instructed that they should take care to make sure the answer is correct because their answer is going to be used by every other student in the class.  Check their work.
3.      After students are given some time to research their answer, the teacher will instruct the students to move around the room collecting answers from other students.  They are to write the answers on their notebook paper; they may gather the answers in any order (but on the paper they hand in, the answers must be in order!).  After each answer is collected, the student who provided the answer to the question must write his/her name in the question square.  The goal is to have a classmate’s name in every square and the answer to every question.
4.      The time given to complete this activity can be flexible.  This can be completed during one class period or in short segments over several days.  The teacher can determine a due date that corresponds to the time it takes the class produce a completed worksheet.  Answers and worksheets can be turned in for a grade.  A shorter version of this activity is to have each student stand, in order, to share their answer with the class (some of the learning experience will be lost).  This activity can be used as an introduction, or a review of material.

If you find any links on my blog that do not work, please let me know by leaving a comment.  I would like to keep my blog up-to-date and relevant.

Sunday, May 26, 2013

Why is Evolution Important Now? Invasive Species

http://www.nutria.com/site14.php

The invasion of Africanized Honey Bees (Killer Bees)
https://www.youtube.com/watch?v=gstt3XlNXN4

The links above illustrate more reasons to understand the process of evolution by means of natural selection.

For more reasons to understand evolution, the following posts also address the question: Why is Evolution Important Now?

 Why Is Evolution Important Now? Understanding Extinction and Our Environment
http://cavalierscience.blogspot.com/2009/03/why-is-evolution-important-now.html

Why Is Evolution Important Now? Disease Prevention
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now-disease.html

Why Is Evolution Important Now? Antibiotic Resistance
http://cavalierscience.blogspot.com/2009/02/why-is-evolutions-important-now.html

Why Is Evolution Important Now? Understanding Diseases and Food Production
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now.html

Why Is Evolution Important Now? Understanding Predation
http://cavalierscience.blogspot.com/2010/07/why-is-evolution-important-now.html

Why Is Evolution Important Now?  Battling the Bedbug Epidemic and Cockroach avoidance of bait - Pesticide Resistance
http://cavalierscience.blogspot.com/2011/03/why-is-evolution-important-now-battling.html

Why Is Evolution Important Now?  Invasive Species
http://cavalierscience.blogspot.com/2013/05/why-is-understanding-evolution.html  

Thursday, March 10, 2011

Why is Evolution Important Now? Battling the Bedbug Epidemic and Cockroach avoidance of bait - Pesticide Resistance

Understanding evolution is a key to understanding pesticide resistance.
http://pubs.acs.org/cen/coverstory/89/8910cover.html

Please read my previous posts on this topic to learn how knowledge of the process of evolution is used to solve modern day problems.

Here is a National Geographic bed bug video: http://www.youtube.com/watch?v=WfKCcSPCOQo

A Natural fungus (biopesticide) may be effective in controlling bed bugs:
http://www.eurekalert.org/pub_releases/2012-11/ps-nfm112012.php

Cockroaches have shown to quickly evolve an avoidance of sweet tasting bait: http://www.sciencedaily.com/releases/2013/05/130523142959.htm

http://www.newsdaily.com/article/c35e4e60019c1b78eb557f0be44c700e/cockroaches-quickly-lose-sweet-tooth--to-survive

For more reasons to understand evolution, the following posts also address the question: Why is Evolution Important Now?

 For more reasons to understand evolution, the following posts also address the question: Why is Evolution Important Now?

 Why Is Evolution Important Now? Understanding Extinction and Our Environment
http://cavalierscience.blogspot.com/2009/03/why-is-evolution-important-now.html

Why Is Evolution Important Now? Disease Prevention
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now-disease.html

Why Is Evolution Important Now? Antibiotic Resistance
http://cavalierscience.blogspot.com/2009/02/why-is-evolutions-important-now.html

Why Is Evolution Important Now? Understanding Diseases and Food Production
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now.html

Why Is Evolution Important Now? Understanding Predation
http://cavalierscience.blogspot.com/2010/07/why-is-evolution-important-now.html

Why Is Evolution Important Now?  Invasive Species
http://cavalierscience.blogspot.com/2013/05/why-is-understanding-evolution.html  

Friday, September 25, 2009

Dog Evolution - Case Study

Dear Case Study Teachers:

Our latest case study is “Not Necessarily on Purpose: Domestication and Speciation in the Canidae Family” by Thomas Horvath, Department of Biology, SUNY College at Oneonta.

In this clicker case, students learn about natural selection concepts and interpret phylogenies as they apply to the Canidae family. The case is based on the idea that the domestication of the dog was not likely an intentional event in human history. Rather, the dog as we know it was likely a result of natural selection events. Then, later intentional selective breeding events formed the many different breeds of dog. Most students are familiar with dogs and may be more open to the ideas of evolution and speciation when applied to this animal rather than to humans.

Case: http://www.sciencecases.org/dog_evolution/prelude.asp
Teaching Notes: http://www.sciencecases.org/dog_evolution/notes.asp
Case Collection: http://ublib.buffalo.edu/libraries/projects/cases/ubcase.htm

Dogs: Their Fossil Relatives and Evolutionary History

http://news.yahoo.com/video/us-15749625/in-the-doghouse-guilty-dog-on-gma-24642455

More interesting information about wolves, dogs, and evolution:
http://www.latimes.com/news/science/la-sci-how-dogs-evolved-20130124,0,1620029.story

http://news.sciencemag.org/brain-behavior/2013/12/scienceshot-wolfs-sharp-eye-may-have-aided-dog-domestication

New information about wolf packs reveals a misconception about the pack hierarchy.  There are no alpha male and female positions in a pack.

Saturday, September 19, 2009

Evolution and Natural Selection Concept Map Worksheet

Change Through Time – Evolution by means of Natural Selection – Concept Map

This concept map can be used in at least three ways. First, you can use the map to preview what you will be reading in your unit of study; you can use it to look up information before you read. Or, you can use this concept map after you have read about the topic so that you can review the chapters that you have read. Third, you can use it as a study guide for a test.

For each topic that is circled, you should write down short descriptive phrases or words that are important facts about the topic. For example, on one of the lines attached to the Organizing and Classifying Life’s Diversity circle, you could write the words: binomial nomenclature (which refers to Linnaeus’s naming system that is still used today). By making short notes that are attached to each topic, you are “chunking” down the information and organizing it in a way that will make it easier to remember. Adding color to your concept map may also help you remember the information.



Thursday, March 05, 2009

Why Is Evolution Important Now? Understanding Extinction and Our Environment

Students read an article http://www.msnbc.msn.com/id/27503150/ about the possible extinction of the Mexican axolotl, and answered the following questions:

Koop, David. “Scientists try to preserve Mexico’s bizarre axolotl.” The News Journal, [Wilmington, Delaware] 3 Nov. 2008: A5.

Reading Questions

Name _______________________ Period _______
1. What exactly is an axolotl?
2. The International Union for Conservation of Nature put the axolotl on its
annual list of threatened species. Why is the axolotl population declining?
a.
b.
3. Biologist Luis Zambrano says that if the axolotl goes extinct, it would be a great loss to:
a.
b.
4. Describe:
a. What an axolotl looks like.
b. How an axolotl moves around in its environment.
c. What an axolotl eats.
d. How the axolotl got its name.
5. How does the axolotl play a key role in laboratory research?
6. How can the axolotl be saved from extinction?

Here's cute axolotl childrens' book: https://twitter.com/Jess_Keating/status/1034423833275461633

Here is another recent article about the axolotl and extinction:
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8220000/8220636.stm

Variation and Natural Selection -Variation in Wolves
A wolf bounty? Not in N.C. In a switch, there’s a reward for a human killer of rare red wolves
http://www.washingtonpost.com/national/health-science/a-wolf-bounty-not-in-nc-in-a-switch-theres-a-reward-for-a-human-killer-of-rare-red-wolves/2013/11/10/328aef68-47dc-11e3-a196-3544a03c2351_story.html?wpisrc=nl_headlines

A celebration of Darwin Day and Natural Selection
http://www.youtube.com/watch?v=Ry7ND9Ja1-o

News about the Global Food Bank
http://www.usnews.com/news/world/articles/2015/10/19/syrian-seeds-withdrawn-from-arctic-doomsday-vault

The origins of multicellular organisms
Lab yeast make evolutionary leap to multicellularity - life - 23 June 2011 - New Scientist

For more reasons to understand evolution, the following posts also address the question: Why is Evolution Important Now?

 Why Is Evolution Important Now? Understanding Extinction and Our Environment
http://cavalierscience.blogspot.com/2009/03/why-is-evolution-important-now.html

Why Is Evolution Important Now? Disease Prevention
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now-disease.html

Why Is Evolution Important Now? Antibiotic Resistance
http://cavalierscience.blogspot.com/2009/02/why-is-evolutions-important-now.html

Why Is Evolution Important Now? Understanding Diseases and Food Production
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now.html

Why Is Evolution Important Now? Understanding Predation
http://cavalierscience.blogspot.com/2010/07/why-is-evolution-important-now.html

Why Is Evolution Important Now?  Battling the Bedbug Epidemic and Cockroach avoidance of bait - Pesticide Resistance
http://cavalierscience.blogspot.com/2011/03/why-is-evolution-important-now-battling.html