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Topics/Subjects:
Mathematics  
Educational Level:
General public  
Materials Cost:
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This iOS app for iPhone, iPad and iTouch, allows families and educators to investigate and learn about the Sun at home, at school, or anywhere. It provides 13 free, easy to use, hands-on activities, plus live images of the Sun from NASA's SDO... (View More)

This is an activity about measuring angular size and understanding the solar and lunar proportions that result in solar eclipses. Learners will use triangles and proportions to create a shoebox eclipse simulator. They will then apply what they learn... (View More)

In this activity, students construct adding slide rules, scaled with linear calibrations like ordinary rulers. Students learn to move these scales relative to each other in ways that add and subtract distances, thus calculating sums and differences.... (View More)

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