Lunar Phases and Eclipses

Author:Steven Blumsack

By moving the "moon" around the earth (upper right), changes in the phases of the moon can be seen. By moving the "Shadow" of the earth towards the moon, various stages in a lunar eclipse can be seen.

New Resources

Pythagorean Theorem: Extension Exercises
Function art 3D - waiting shed (v2)
挂谷问题——三尖瓣形
Perpendicular Lines: Quick Exploration
What Do You See? (2)

Discover Resources

Circle Properties
Origami Overview
Reflect: Multiple Steps
Modelos Lineales P. Dieta
Line segments intersecting at the nine-point center

Discover Topics

Means
Trigonometry
Hypergeometric Distribution
Square
Subtraction