1.G.4

Partition circles and rectangles into two and four equal parts; describe the parts 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 parts. Understand for partitioning circles and rectangles into two and four equal parts that decomposing into equal parts creates smaller parts.

I Can Statements Academic Vocabulary

I can break circles into two and four equal pieces.
I can break rectangles into two and four equal pieces.
I can describe equal pieces of circles and rectangles using the words halves, fourths, and quarters.
I can describe a whole circle or rectangle as having all the parts that make up that shape.
I can understand that decomposing circles and rectangles creates smaller parts.

Partition
Equal parts
Rectangle
Fraction
Half
Fourth
Quarter
Decompose

Looking Back Looking Ahead

Use objects, drawings, etc., to decompose numbers less than or equal to 10 into pairs. (MA.K.CA.3)

Partition a rectangle into rows and columns of same-size. (MA.2.G.4)
Partition circle and rectangles into two, three, or four equal parts. (MA.2.G.5)