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Source
The Math Forum at Drexel

Subject
Mathematics

Grade Level
9, 10, 11, 12

Extending the Enneagon

In Extending the Enneagon, students determine the meaure of an angle formed by extending two sides of an enneagon until they intersect. Elements of this problem are explored in Grade 7, when students “Use facts about supplementary, complementary, vertical, and adjacent angles in a multi- step problem to write and solve simple equations for an unknown angle in a figure.” Combining those concepts with properties of regular polygons is more likely tackled in high school. 

This task includes:

Source
ConnectEd

Subject
World Languages and Cultures, Science, Mathematics, History/Social Studies, Health Science, Interdisciplinary

Grade Level
9, 10, 11, 12

Second Opinion

This unit includes an unit overview and 2 subunit overviews with built-in lessons. 

Unit description from the source: In this unit, students will explore the variety of medical practices that exist outside of conventional Western medicine. Complementary and alternative medicine, known as CAM, is becoming more widely accepted in the United States as our population becomes more diverse. At the same time, scrutiny of these practices, some of which are not subject to any regulatory oversight, is an issue that becomes increasingly pressing for the healthcare industry, healthcare workers, and the general public. 

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