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Reflect on This
In this lesson, learners will investigate reflections in a plane using mirrors (or other reflective materials) and a geometry utility. They will use their findings for examination of interior angles of regular polygons.
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Lights on the International Space Station
Groups explore illumination with NASA's Lighting Environment Test Facility (LETF) as a context. Using the TI-Nspire app, groups determine the lux equation that models their simulation. They then use the lux equation to solve problems...
9th - 12th Math CCSS: Designed
The Geometric Effect of Multiplying by a Reciprocal
Class members perform complex operations on a plane in the 17th segment in the 32-part series. Learners first verify that multiplication by the reciprocal does the same geometrically as it does algebraically. The class then circles back...
11th - 12th Math CCSS: Designed
Describing the Center of a Distribution
So the mean is not always the best center? By working through this exploratory activity, the class comes to realize that depending upon the shape of a distribution, different centers should be chosen. Learners continue to explore the...
9th - 10th Math CCSS: Designed
Critical Thinking through Core Curriculum: Using Print and Digital Newspapers
What is and what will be the role of newspapers in the future? Keeping this essential question in mind, class members use print, electronic, and/or web editions of newspapers, to investigate topics that include financial literary,...
3rd - 12th Math CCSS: Adaptable