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Playlist: 4th grade math

Grouping Shapes by Parallel and Perpendicular Sides

Which shapes go together based on parallel and perpendicular lines?

Same Perimeter, Different Area For Rectangles

Can two rectangles have the same perimeter but… different areas!?

Grouping Quadrilaterals In A Hierarchy

Can we classify quadrilaterals like we classify living things?

A Grid-Based Fraction Project

You’ve got 60 spaces on a grid to create an amusement park, a house, a farm, or whatever you’d like. Divide it into seven pieces, order it by size, combine into two halves, and more in this fraction project.