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Playlist: enrichment

Broken Calculator: 2-Digit Subtraction

This calculator gets subtraction wrong the same way every time. Can your students crack its broken rule?

What’s In My Brain: Pentagon vs Pentagon

We’re looking at regular vs irregular polygons.

Math Curiosity: Magic Triangles

Can you make each side of this triangle add up to 9 using the digits 1-6?

The Angles of a Triangle

Why tell a kid the rules of a triangle when they can discover them!?