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Magic Cards

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Visit this site: http://www.math.ohio-state.edu/~cban/cgi-bin/magic/

Author:Chunsheng Ban
Description: You see four cards, each with eight numbers. Think of a number from 1 to 15; Check ALL the boxes below the cards that contain your number; Click on the button "What's My Number?"; Your number will be displayed on the screen. Based on an exercise in a math course for elementary school teachers, with hints for how it works.

Levels: Elementary, Middle School (6-8), High School (9-12)
Languages: English
Resource Types: Games, Problems/Puzzles, Fun for Kids
Math Topics: Patterns/Relationships, Combinatorics

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