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  • HHMI Biointeractive
Human Skin Color:  Evidence for Selection
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Students watch the short film The Biology of Skin Color, pausing at specific points. After watching a particular segment of the film, they analyze data presented in a scientific figure and make evidence-based claims using the data and information from the film. The lesson involves graph interpretation and analysis. It was designed to be completed in one 90-minute class period, depending on the amount of class discussion. The lesson brings together many science practices and is appropriate for all levels of high school biology and introductory college courses. 
This lesson was adapted from the case study “The Evolution of Human Skin Color” by Dr. Annie Prud'homme-Généreux published by the National Center for Case Study Teaching in Science (http://sciencecases.lib.buffalo.edu/cs/files/skin_pigmentation.pdf).

Subject:
Biology
Life Science
Material Type:
Assessment Item
Diagram/Illustration
Lesson Plan
Reading
Provider:
HHMI Biointeractive
Date Added:
11/17/2015
What's So "Key" About A Keystone Species
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The resource is a video and a web quest to introduce students to keystone species and trophic cascades. I use both activities after students learn about food chains & webs and energy pyramids. The students work individually or in small groups to complete the web quest. I show the video before the activity to the entire class. The video can be viewed at home. Teachers can extend the activity by having students share the keystone species they researched in small groups or whole class.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Learning Task
Primary Source
Reading
Provider:
HHMI Biointeractive
Date Added:
06/21/2016