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Playlist: Bookmarks

Game: Order and Chaos

Imagine Tic-Tac-Toe if both players could play as both Xs and Os!

Bulls and Cows

How quickly can you break the numeric code?

Math Curiosity: Four Squares

Every positive integer can be written as the sum of (at most) four perfect squares!

Math Curiosity: Magic Squares

Imagine a 3×3 square in which every row, column, and diagonal have the same sum. That’s a magic square!

Finding The Volume of Laptops

How has the volume of laptops changed over time? You know you want to check out how huge those first versions were!

Showing A Character’s Trait

We tell students to ‘show, not tell’ — but that advice is useless until they experience the difference. This lesson makes it click.

Visualizing Fraction Multiplication

What does it look like to multiply fractions?

Greekymon

Rather than just memorizing word parts, students will use those word parts to create four possible products.