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This online manipulative enables the student to explore the meaning of multiplication with variables. The student arranges tiles representing variables and the values one and five on a work space. This array representation can be used to model multiplication problems such as x(y + 2) and division problems. The size of the variables can be changed with a slide bar. Instructions for using the manipulative, eight activities with a lesson plan, and a link to the National Council of Teachers of Mathematics (NCTM) standard for algebra are included. Copyright 2005 Eisenhower National Clearinghouse
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