1. Monday, March 27th Do Now:
What does “evolution” mean?

2. Objectives 1. Define "Evolution" & "Natural Selection".
2. Describe the 4 steps of Natural Selection, giving an example of each.
3. Explain the importance of "Variation".
4. List the 5 evidences that support the Theory of Evolution.

3. Inside of Your Foldable
Vocabulary
Charles Darwin

4. Outside of your Foldable
Four Steps of Evolution
Evidence for Evolution

5. Theory of Evolution Evolution: The process of change over time
Specifically, a change in the frequency of a gene or allele in a population over time

6. Making A Concept Foldable :
Evolution
Species
Natural selection
Adaptation
Variation
Extinct
Gradualism
Homologous structure
Branching tree

7. Charles Darwin Father of Evolution
Proposed a mechanism for evolution, natural selection
Darwin went on a 5-year trip around the world on the ship, the HMS Beagle
As the ship’s naturalist, he made observations of organisms in South America and the Galapagos Islands
Wrote a book, “Origin of the Species”

9. Darwin’s Finches

10. Tuesday, March 28th Do Now:
There is a population of grasshoppers in my backyard. There are a lot of green grasshoppers and a few brown grasshoppers, too. After a drought, the green grass in my backyard turns brown.
Predict how the population of grasshoppers in my backyard will have evolved by the end of this summer of drought. Explain your prediction.

11. TODAY’S PLAN TODAY’S DO Define evolution and natural selection.
Describe the 4 steps of evolution by natural selection, giving an example of each.
Explain the importance of variation.
TODAY’S DO
Video clips
Discuss 4 steps of evolution by natural selection
Discuss importance of variation to natural selection

12. Galapagos Islands Video Clips http://vimeo. com/87433093 http://www

13. Natural Selection
Natural Selection: Organisms that are best adapted to an environment survive and reproduce more than others

14. Darwin’s Theory of Natural Selection occurs in four steps:
Overproduction
Variation
Competition
Selection

15. 1. Overproduction
Each species produces more offspring than can survive

16. 2. Variation
There is variation (differences) between the individuals in a population
Adaptation: an inherited trait that increases an organism’s chances of survival
This ensures that at least some individuals will survive no matter how the environment changes.

17. What adaptations do you see?

18. What adaptations do you see?

20. Why is Variation Important?
Because the environment changes.
The more variation within a species, the more likely it will survive
EX: If everyone is the same, they are all vulnerable to the same environmental changes or diseases
The more variation of types of species in an habitat, the more likely at least some will survive
EX: Dinosaurs replaced by mammals

21. Which community has a better chance of surviving a natural disaster?
Community A
Community B

22. DO NOW Wednesday, March 29th
Consider the owl and moth below. What adaptation does the MOTH have? Explain how this trait is an adaptation.
2. What very important term associated with evolution does the picture of the eyes below represent?

23. TODAY’S PLAN TODAY’S DO Define evolution and natural selection.
Describe the 4 steps of evolution by natural selection, giving an example of each.
Explain the importance of variation and adaptation.
TODAY’S DO
Those who have NOT completed will complete BrainPOP video quizzes for BOTH days.
Those who have completed will do the adaptation activity.
Upon completing both, take notes using the Evolution PowerPoint on my 8th grade Science page.

24. Adaptation Activity
Pick an environment for your animal somewhere in the classroom. No two students can use the same environment.
Color your animal so that it is adapted to the environment you chose.
The student whose animal is best adapted to its environment will win a prize!!
Students who finish will complete guided notes using the Evolution PowerPoint on my 8th grade Science page.

25. DO NOW Thursday, March 30th
Explain how the beetle population in the picture below will evolve as a result of natural selection.
Please use
complete
sentences.

26. TODAY’S PLAN TODAY’S DO Define evolution and natural selection.
Describe the 4 steps of evolution by natural selection, giving an example of each.
Explain the importance of variation and adaptation.
TODAY’S DO
Do Natural Selection Gizmo warm-up together as a class.
Complete Activity A and Activity B of the Gizmo quietly and independently.
Complete guided notes from yesterday over Evolution PowerPoint on my 8th Grade Science Page.

27. DO NOW Monday, April 10th
What was the most fun thing you did during spring break?

28. TODAY’S PLAN TODAY’S DO
Describe the 4 steps of evolution by natural selection, giving an example of each.
List the 5 evidences that support the Theory of Evolution.
TODAY’S DO
Finish Evolution foldable: 4 steps of evolution and 5 evidences for evolution

29. 3. Competition Individuals COMPETE for limited resources:
Food, water, space, mates
Natural selection occurs through “Survival of the fittest”
Fitness: the ability to survive and reproduce
Not all individuals survive to adulthood

30. 4. Natural Selection
The individuals with the best traits / adaptations will survive and have the opportunity to pass on it’s traits to offspring.
Natural selection acts on the phenotype (physical appearance), not the genotype (genetic makeup)
Ex: When a predator finds its prey, it is due to the prey’s physical characteristics, like color or slow speed, not the alleles (BB, Bb)

31. Individuals with traits that are not well suited to their environment either die or leave few offspring.
Evolution occurs when good traits build up in a population over many generations and bad traits are eliminated by the death of the individuals.

32. Darwin’s Theory of Evolution: A Brief History

37. Peppered Moth A
Which moth will the bird catch? B

38. What is evidence?
Information that shows something is true or reasonable

39. Evidence for Evolution:
Fossil Record
Homologous Body Structures
Vestigial Organs
Embryology
Biochemical Evidence

40. The Fossil Record
Fossils: a record of the history of life on Earth

41. Archaeopteryx
Missing link between reptiles and birds

43. Homologous Body Structures
Homologous Body Structures: similar anatomy in different types of animals because of a common ancestor

45. Vestigial Organs
Vestigial Organs: “leftover” traces of evolution that serve no purpose

47. DO NOW Tuesday, April 11th
What are homologous structures? Give some examples.

48. TODAY’S PLAN TODAY’S DO
List the 5 evidences that support the Theory of Evolution.
TODAY’S DO
Review/Finish Evolution foldable: 5 evidences for evolution
Homologous Structures Coloring Activity

49. Embryology
Embryology: embryos of all vertebrates are very similar at the beginning of development

51. Biochemical Evidence
Biochemistry: DNA with more similar sequences suggest species are more closely related
EX: Humans and chimpanzees share more than 98% of identical DNA sequences

52. Homologous Structures Activity
You may work alone or with your table partner. (Level 1 or 2 please)
Read Introduction.
Color the picture on the first page according to the directions.
Color the pictures on the next page just like you did the first picture to indicate the corresponding bones in each homologous structure.
Complete the activity by answering all questions.
Turn in.

53. Learning Goals 1. Define "Evolution" & "Natural Selection".
2. Describe the 4 steps of Natural Selection, giving an example of each.
3. Explain the importance of "Variation".
4. Does Natural Selection act on an organism phenotype or genotoype? Explain!
5. List the 5 evidences that support the Theory of Evolution.

54. Coral Snake (Poisonous)
Milk Snake (Not poisonous)

61. Stick Mantid

62. Flower Mantid

63. What is Evolution? Task:
Task:
During this video clip take 10 facts about evolution.

64. Friday, Oct. 30 Do Now: Copy in the Agenda
Copy in the table of contents
Finish the Concept Foldable in the Journal:
Species
Evolution
Natural selection
Adaptation
Variation
Extinct
Gradualism
Homologous structure
Branching tree

65. What is an example of evolution?
Exit Slip:
What is an example of evolution?

66. Tasks:
Define the following:
Worksheet (homework if not finished)

67. Lamark Theory of acquired characteristics
Lamark said organisms acquired traits by using their bodies in new ways
These new characteristics were passed to offspring
Lamark was totally wrong!

68. Natural Selection Lab

69. Exit Slip:

70. Descent with Modification
Descent with Modification – each living species has descended, with changes, from other species over time.
Common Descent – all living organisms are related to one another