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National Science Education Standards:
No  
Instructional Strategies:
Integrated instruction  
Topics/Subjects:
Earth structure  
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This textbook chapter introduces the buffalo as a keystone species, and describes the environmental impacts of its near extinction, including today’s predominance of non-native species in the Great Plains. Human activities that contribute to... (View More)

Math skills are applied throughout this investigation of windows. Starting with basic window shapes, students determine area and complete a cost analysis, then do the same for windows of unconventional shapes. Students will examine photographs taken... (View More)

Audience: Elementary school, Middle school, High school
Materials Cost: Free
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