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Playlist: Bookmarks

Word Ladder: Fast to Race (4 step)

COLD to COOL. BAND to SING. Change one letter at a time — can you find the path?

Notice, Wonder: Climber

A mysterious image. Reveal it slowly. Let your students wonder!

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!