Grade 1 Geometry: Halves and Quarters

Divide shapes into equal parts

What You'll Learn

When we divide a shape into equal parts, each part is the same size. Two equal parts are called halves. Four equal parts are called quarters.

Cut a pizza in half - you get 2 equal pieces. Cut each half in half again - you get 4 quarters!

The parts must be equal! If one piece is bigger, they are not true halves or quarters.

Real problems from the practice worksheets, solved one step at a time.

Example 1
How many quarters make one whole cookie?
1. A whole cut into quarters has 4 equal parts.
2. So 4 quarters make one whole cookie.
Answer: 4
Example 2
How many equal parts is this square cut into?
1. Put your finger on one part and count it.
2. Move to the next part and keep counting until every part is counted once.
3. So the square is cut into 2 equal parts.
Answer: 2
Example 3
Is this circle cut into equal parts?
1. Equal parts are parts that are all the same size.
2. Compare the parts of the circle: would they match if you cut them out and stacked them?
3. The answer is yes: every part is the same size.
Answer: yes