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NASA

Blinded by the Light!

For Students 9th - 12th
Pupils learn of multiple ways astronomers look for planets outside of the solar system. By completing a hands-on activity, scholars discover that trying to see the planets directly because of the glare from the nearby star is nearly...
Article
Khan Academy

Khan Academy: What Are 3 D Shapes?

For Students 9th - 10th
This Khan article explains how to write your own 3D graphics engine with some trigonometry!