6B Natural Selection & Adaptations
I can construct an explanation based on evidence that the process of evolution primarily results from four factors; Apply concepts of probability to support the explanation that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait; I can construct an explanation based on evidence for how natural selection leads to adaptations in populations; Evaluate evidence supporting claims that changes in environmental conditions may result in changes in population sizes, the emergence of new species over time and extinction of other species.
MLS: LS4B-1, LS4B-2, LS4C-1, LS4C-2
NOTE: FOR THIS ENTIRE OBJECTIVE (4B) YOU WILL WORK AS A TABLE GROUP. YOUR GROUP CAN DIVIDE INTO PAIRS FOR SMALLER ASSIGNMENTS BUT WILL NEED TO WORK TOGETHER AS TABLE GROUPS FOR MULTIPLE ACTIVITIES IN THIS OBJECTIVE.
activity 1: finch readingIn the next couple of activities you will be making an extended segment in your ISN and learning about a population of finches. You will begin by getting the Medium Ground Finches of Daphne Major reading (two ISN pages). READ and HIGHLIGHT the article then place it in your ISN.
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activity 2: finch graphsYou are now going to look at the data that the Grant's collected over a certain period of time. You job is to try to figure out what is happening with the finches. You will need to pick up the finch graphs packet. This packet includes 8 different graphs and tables representing the actual data collected by the Grants. You will cut apart each graph and paste them (in order) in your ISN. Each graph will go on a separate page. On each page you will then add WIS, WIM and captions for each graph (refer back to unit 0 if you need a refresher). Talk within your group. Help each other see what is going on in each of the graphs and how they relate to each other. EVERYONE should participate in the discussions equally. You are not allowed to sit silently and not contribute. Likewise, no ONE PERSON should talk about every graph. One sign of a professional is not only being confident enough to share your ideas with others, but also knowing when to keep your mouth shut and let others speak. :) Share the responsibility of discussions.
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activity 4: Finch summaryNow, you will put together everything you have learned so far. On the next ISN page, you need to copy the following questions, then answer them as a group. Again, the protcol for good discussions should be used (everyone contributes, no one talks all the time).
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activity 5: finches video
This activity will be hidden until you have completed ALL the activities above. You must come up with your own "story" of how the finch traits changed over time before you can watch the video.
activity 6: Sorting FinchesYou will work in PAIRS for this interactive. It must be a different partner from the previous activity. In this interactive you will test your ability to classify finches based on appearance and song. Pick up a handout that goes along with this interactive. Follow the instructions on your handout and work through the interactive. Answer all questions as you go. When all groups are finished, discuss the answers among your table group.
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activity 7: Oh Deer
Whole class population simulation. When you are finished, answer the following questions in your ISN.
- Was it always easy to be a deer in the game? Why or why not?
- Does it matter which resource is limited? For example, what if there's lots of food and shelter but no water?
- Is there anything the deer can do when they run our of a resource?
- If there is a shortage of resources, what might be affected?
- On a day to day basis, when resources are limited, what is it like to be a deer?
activity 10: recipe for evolution interactiveYou will work in PAIRS for this activity. Go to the link below. Work through the interactive which will review how evolution occurs and the factors that must be present for natural selection to happen. Add notes to your notes packet as appropriate.
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activity 11: orchid mantisWatch the video below about a certain species of mantis. Discuss with your group:
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