2nd Grade Shapes & Equal Shares: Halves and Thirds

Identify triangles, quadrilaterals, pentagons, hexagons, and cubes, count squares in tiled rectangles, and partition shapes into halves, thirds, and fourths. Aligned with Common Core CCSS 2.G.A.1, 2.G.A.2, 2.G.A.3.

Worksheet version 1 of 12. The answer key matches the current version.

Name: ________________________Version 1 · Date: ______________

1. Count the sides and angles (vertices) of this shape. What polygon is it?

Sides: ____ · Shape: ____________________

2. Count the sides and vertices of this shape. What polygon is it?

Sides: ____ · Shape: ____________________

3. This circle is split into 3 equal shares. What do we call these equal shares?

Shares: [ Halves / Thirds / Fourths ]

4. This rectangle is partitioned into 3 equal rows. How many thirds make the whole rectangle?

____ thirds = 1 whole

5. Look at this 3D cube. How many square faces does a cube have?

Square faces: ________

6. Count the same-size unit squares inside this 3-by-4 partitioned rectangle.

Total squares: ________

About 2nd Grade Shapes & Equal Shares (CCSS 2.G.A.1–3)

  • Polygons are named by their sides and angles: triangle (3), quadrilateral (4), pentagon (5), hexagon (6). A cube has 6 equal square faces.
  • A rectangle partitioned into rows and columns of same-size squares can be counted by adding equal rows or columns.
  • Equal shares of a whole are called halves (2 equal parts), thirds (3 equal parts), and fourths or quarters (4 equal parts).

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