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# 3D Vertical Fraction Strips

Class Time: 15 minutes
Materials
3D Vertical Fraction Strips

This manipulative is a 3D version of fraction strips. Each strip is a rectangular piece that will slide onto one of the three vertical pegs so that the fraction strips can stack vertically (rather than lining up horizontally) and represent the value of a fraction in terms of height. The fractions are mounted on one platform with the 1 (whole) always visible so that the student can begin to grasp how all the fractional parts are related to the whole. Each fraction strip is labeled with its fraction name, but only on one side so that they can be made either visible to or hidden from students as they problem solve.

### Big Idea

Fraction representations, Fraction comparison, Equivalent fractions, Addition and Subtraction of Fractions

### Purpose

This tool was designed to help students develop fraction sense using visualizations and manipulations of fraction quantities. In particular, the tool is useful for helping students make sense of the symbolic representation of a fraction by connecting it to its physical representation.