5th Grade · Geometry
Classify 2D Figures
5.G.B.3
Definition
To sort two-dimensional shapes into groups based on their shared properties.
Examples
- A square is both a rectangle and a rhombus, since it shares attributes with each.
- A trapezoid and a rectangle are both quadrilaterals, but only the rectangle has four right angles.
Key rule
A shape can belong to more than one category if it shares attributes with each.
Memory hook
Sort by what's shared, not just by name.