1. Bell Ringer Date: 9/29 – 9/30 Topic: Evidences of Evolution
Learning Target: Explain how the fossil record, comparative anatomy and
Have your homework out and ready to be checked
Answer the following question:
What are two differences between prokaryotic and eukaryotic cells?

2. Agenda Bell Ringer (10 minutes)
Introduction: Turn and Talk (5 minutes)
Notebook Input (15 minutes)
Notebook Output (10 minutes)
Group Work: Mini Lab (20 minutes)
Independent Practice (20 minutes)
Exit Quiz (10 minutes)

3. Evolution Video (2min)

4. Think and Talk
How could you prove this is the way it happened? What experiments or evidence exist?
Ex.: That a lizard started as a fish?

5. EVOLUTION is the process of change over time

6. Common Ancestry
The theory of Evolution states that organisms share common ancestry, meaning that different species we have today originally came from one species

7. Input Notes: Write what is in RED

8. Darwin studied animals on the Galapagos Islands
Evidence for Evolution Day 1
Darwin’s theory of evolution: organisms evolved over long periods of time descending from common ancestors
Darwin studied animals on the Galapagos Islands
He noticed that some fossils of extinct animals were similar to living species

9. Talk: How is this evidence of evolution
Talk: How is this evidence of evolution? What other species may have this common
ancestor?

10. Which fossils are older?

11. Evidence for Evolution Day 1
Darwin’s theory of evolution says that organisms evolved over long periods of time through descent from common ancestors
Fossil Record
Evidence that life on earth is old and has changed over time
Shows similarities between ancient and present day organisms
Simple to complex
Newest fossils
Oldest fossils

12. Fossil record Layers of rock contain fossils
Which of these fossils would be more towards the top of the rock canyon?
Layers of rock contain fossils
Upper layers=most recent fossils 12

13. Think and Talk: Who is most similar? Why? (More closely related)
VS.
VS.

14. Think and Talk: What do you notice?
VS.

15. Homologous Structures
same structure
on the inside
different functions
on the outside
Different evolution, similar origins
Is this evidence for common ancestry?
Analogous Structures
Same function
on the outside
Different structure (on the inside)
Is this evidence for common ancestry?
Different origins, similar evolution

16. 2. Comparative Anatomy: comparing different species bone structures to determine common ancestry
Vestigial structures- body parts that have no function
Homologous structures-
different function,
same structure
Analogous structures- same function, different structure

17. Vestigial structures:
Body parts that seems to serve no purpose/function
Indicate common ancestry
Example: Appendix, wisdom teeth
Picture of evolution from the feet. Students should COPY this slide. BRIEFLY go over what is written
A good strategy to use is repetition. As students are writing, you are repeating the same statement and providing QUICK examples

18. Think and Talk: What do you see/notice? What will this grow into?
Chimp
Human
Similarities in embryos prove common ancestor

19. 3. Comparative Embryology: comparing embryos of different species to determine common ancestry
Shows that there are shared patterns of development

21. Notebook Output (10min)
Answer the following question in complete sentences:
How does the evidence we have prove the theory of evolution—that we come from a common ancestor?
Use the following vocabulary words: evidence, fossil record, theory

22. Group Mini Lab/Independent Practice
Group 1 will do the group activity first
Group 2 will do independent practice first
Then the groups will switch

23. End Mini Lab Expectations Follow instructions on the worksheet!
Talk using scholar voices!
Work with urgency!
Stay in your group and do not move around the classroom!
20 minutes
End

24. Independent Practice Expectations
Work SILENTLY
Raise your hand to ask a question
Work with urgency!
20 minutes
End

25. Exit Quiz
Work SILENTLY and INDEPENDENTLY!
5 minutes
End