Volume+of+Rectangular+Prisms

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Unit Cube:

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Fractions: media type="youtube" key="2yPv6xqu1Z8" height="360" width="640"

Composite Shapes:

Learn Zillion Lesson: Composite Shapes

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This is worth a look. There is a full lesson and a learning video.

[|Missing Sides Learn Zillion]

Composite Shapes with Missing Sides:

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Small Boxes in Large Box:

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Problem Solving:

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