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(1)Today we are going to start class with a writing assignment called a R.A.F.T. R=Role, A=Audience, F=Format, T=topic

SPI 0807.5.2 Adaptation SPI 0807.5.3 Variation. Bellwork: Adaptation RAFT. Sept 28, 2012. (1)Today we are going to start class with a writing assignment called a R.A.F.T. R=Role, A=Audience, F=Format, T=topic Role : You are a scientist digging up fossils

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(1)Today we are going to start class with a writing assignment called a R.A.F.T. R=Role, A=Audience, F=Format, T=topic

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  1. SPI 0807.5.2 Adaptation SPI 0807.5.3 Variation Bellwork: Adaptation RAFT Sept 28, 2012 • (1)Today we are going to start class with a writing assignment called a R.A.F.T. • R=Role, A=Audience, F=Format, T=topic • Role: You are a scientist digging up fossils • Audience: You are writing a letter to your family about what you have discovered • Format: Informal letter (At least 12 sentences long) • Topic: Over the last 12 months you have been digging up horse fossils in sedimentary rock. In the top level of sediment you find horse skeletons nearly identical to modern horses. As you dig down deeper into the levels you find the horse skeletons get smaller and smaller. Describe this to your family and explain why. 1

  2. SPI 0807.5.2 Adaptation SPI 0807.5.3 Variation Bellwork: Adaptation RAFT Oct 10, 2011 Sedimentary Rock Formation Level A: Modern sized horse skeletons (fossils) Level B: Medium sized horse skeletons (fossils) Level C:Dwarf sized horse skeletons (fossils) 2

  3. SPI 0807.5.2 Adaptation SPI 0807.5.3 Variation Plan Sep 28, 2012 • (1) Discuss bellwork (R.A.F.T.) and ask about birthdays!!! • (2) View and discuss 7 pictures from out science book • (3) Start working on a key-term foldable (see p517) about 7 images • NOTE: This is not homework today…classwork only! • Fold your paper in half horizontally • Make 6 cuts to create 7 equal flaps • On the outside flaps write the page numbers • On the inside flaps describe the picture • On the inside-back write the purpose of the picture • (5) Copy this downin your agenda: • Classwork/homework: None Silly Thought: 3 What happens when you get scared half to death twice? .

  4. SPI 0807.5.2 Adaptation SPI 0807.5.3 Variation Notes • Two type of adaptations: • Behavioral (what an organism does) • Structural (the shape and form of an organism’s body) 1) See ps68-69 (insects): Behavioral or structural? • Two types of reproduction: • Sexual (requires two parents: male and female) • Asexual (requires only one parent) 2) See p70/Fig 1 (hydra & starfish): Sexual or asexual? 4 3) See p82/Fig 1 (bear): Behavioral or structural?

  5. SPI 0807.5.2 Adaptation SPI 0807.5.3 Variation Notes 4) See p85/Fig 2 (porcupine & snake): Behavioral or structural? 5) See p87/Fig 6 (Natural Selection): What is natural selection? (p86) 6) p87/Fig 6 (Natural Selection): Discuss steps 1 and 2 7) p87/Fig 6 (Natural Selection): Discuss steps 3 and 4 5

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