Lesson 3C - coming soon!
Section Three: Using Darwin's Model of Natural Selection
The three lessons included in this section are intended to provide students with opportunities to use their understanding of the Darwinian model to explain natural phenomena. During the first lesson students will develop an explanatory structure that they will then use to apply the natural selection model. The second lesson is intended to help students understand two important components of the natural selection model: variation and heritability. And finally, the third lesson contains the first of three case studies the students will encounter in the unit. This first case centers on a hypothetical plant species and asks students to explain the change in seed coat characteristics observed over time. Data from the case materials can be used to support the Darwinian explanation students develop.
Lesson 3A: Developing a Darwinian Explanation
Lesson 3B: Exploring Variation and Heritability