Grade 1Geometry

1.G.A.3

Split circles and rectangles into halves and quarters — the first step toward fractions.

Worksheets for this standard 1 topic

Equal Shares: Halves and Fourths1 way

The standard, officially

Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.

Builds on

1.G.A.2Combine shapes into new ones

Leads to

2.G.A.3Split shapes into equal shares