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"When you recognize a word's prefix, you can make a better guess at the meaning of a new word. Or as our new prefix video says, "Prefixes…It's like a remix, it changes things." By the end of this prefix lesson plan, students will be able to recognize the meanings of common prefixes, use the prefixes to determine meanings of words, and then play a prefixes game where they invent new words using prefixes. Prefix Lesson Plan"

This tool features a problem-solving activity in which you must transfer blocks of different sizes from one tower to another. The activity is based on a game invented by the French mathematician, Edouard Lucas, in 1883. The rules are that you can only move one block at a time and that a larger block may never lie on top of a smaller one.