Sort by Attributes

Sort shapes by a rule, then make up their own rule.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 71

We can sort shapes by a rule. These shapes all have 4 sides. The others don't.
The same shapes can be sorted by a different rule: more than 4 sides, or not.
To find someone's rule, look for what all the shapes in one group have in common, like the number of sides or vertices.
You can make up your own rule too! Try: shapes with 3 vertices. Which of these would go in your group?

Georgia's K-12 Mathematics Standards:

2.GSR.7.1 — Describe, compare and sort 2-D shapes including polygons, triangles, quadrilaterals, pentagons, hexagons, and 3-D shapes including rectangular prisms and cones, given a set of attributes.