Open Array Decimal Division Tool. The Open Array Decimal Division tool is used to demonstrate how decimal division can be represented as an area that is divided into component parts. Students use a combination of the interactive model and a flexible procedural tool to add partial factors in finding a quotient. Remainders are demonstrated in a visual and conceptual manner. Word problems can be entered to anchor each problem.

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Explore two lessons from our breakthrough fractions curriculum. Each lesson uses visual models to develop students' thinking as it progresses from concrete to abstract representations.
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400+ Remediation activities
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45 Student Investigations
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