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Start with a basic simile. Now make it more specific. Now even more. Watch how much better writing gets with each round.

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

Repeating words can be what you want, if what you want is an interesting effect. (Psst, that’s an example of anadiplosis!)

Want to take Tic-Tac-Toe to the next level!? Imagine a 15×15 board. You must get five-in-a-row. You cannot get six-in-a-row. That’s Gomoku!

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

Using this one weird trick, it seems that you can turn any number into a palindrome!