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Fun with Picture Grids: Teaching the Subtraction of Fractions

   Order a set at: Part II: Teaching Subtraction with the Picture Grids ManipulativesHenry continues using the Picture Grid materials to teach subtraction:1. “The grids can also be used to do subtraction,” Henry says. “Let’s take the problem of one-half minus one-fourth.” He hands out the halves grid, the fourths grid, the clear grid, and a bunch of colored pencils. He tells the students to solve the problem. One group takes the quarters grid and overlays it directly on top of...

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