Tuesday November 18, 2014
Natural Selection

LTLT:  I can develop, communicate, and justify an evidence-based explanation for the evolution of organisms and environments by analyzing and interpreting data from the fossil record. LT: I can evaluate data to explain the theory of natural selection. Criteria for Success  *I can create a definition of natural selection  *I can collect data relating to natural selection                                                                                                                                                                                       Agenda: Warm up Reading: Survival of the Fittest Power Pt. Notes-Natural Selection Definition Inquiry Activity Questions Exit Ticket Warm up: Look at the picture on the screen.  1. What are some traits this that helps this organism to survive?  2. How and why? LTLT, LT & CS Reading Call of the Wild Excerpt, emphasis on Survival of the Fittest                                      *how does this relate to LTLT#3? Power Point Natural Selection Definition. This was an idea proposed by a scientist named Charles Darwin, who also came up with the Theory of Evolution. We will be discussing that later this week. Here is my definition for Natural Selection, but today you are going to do an activity to better help you understand what this means and come up with your own definition of natural selection. Natural Selection Inquiry Activity: How will the color of paper affect the type of beans you pick up? *As a class, create a hypothesis Question Completion  Debrief: QUESTIONS TO ASK: *What could the beans have represented? Now that you have done the activity and analyzed your data, *How did the background affect the ones you picked up? *Do you think the Pine Beetle may have gone through Natural Selection over time?  *What might be some of the traits that were selected to help it survive up here? Tomorrow we’re going to talk about Darwin and the Theory of Evolution, and how it relates to our LTLT#3 and adaptations.   Exit Ticket Definition of Natural Selection The process where organisms change over time, and those that are best suited to the environment are the ones that survive and pass on their traits.  Natural Selection Activity   Daily Learning Target: I can evaluate data to explain natural selection Q: How will the color of paper affect the type of beans you pick up? Hypothesis: I think that _____________________ will affect ________________ because __________________________________________________________________. DATA GREEN CONSTRUCTION PAPER # of PEAS Picked Up # of WHITE BEANS Picked Up # of RED BEANS Picked Up RED CONSTRUCTION PAPER # of PEAS Picked Up # of WHITE BEANS Picked Up # of RED BEANS Picked Up WHITE CONSTRUCTION PAPER # of PEAS Picked Up # of WHITE BEANS Picked Up # of RED BEANS Picked Up ANALYSIS Answer these on the following page of your notebook with your partner) 1.On the GREEN background, which bean "survived" best and worst? What evidence do you have? 2. What do you think would eventually happen to the population of the beans that "survived"     the worst? Why? 3. Which bean "survived" the best on the RED background? Was it the same or different than     the bean that "survived" the best on the GREEN background? Why do you think this? Explain. 4. Why did different beans survive better on the different colored backgrounds? INDEPENDENT QUESTION 5. Based on this activity, what does the term NATURAL SELECTION mean in your own words?   Lab Procedure Sheet  1.To be completed in pairs or individually…  2. Place all of the beans onto the green construction paper. 3. Both students in your group will close their eyes for 30 seconds. After 30 seconds, open your eyes and pick up the first bean that you see and place it aside in the beaker and close you eyes. Close your eyes and count to ten then open them and again grab the first bean that you see. Do this 10 times.  4. When you are done, count the beans remaining on the construction paper. These are the ones that “survive.” 5. Then count the beans that you picked off of the construction paper, and put into the cup. These are the ones that “die.” Fill in the numbers in the data chart. 6. Now place the beans onto the red construction paper. Repeat steps 3, 4 & 5. 7. Now place the beans onto the white construction paper. Repeat steps 3, 4 & 5.