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Grade 2 Math Β· World 8: Shape Island Β· Level 73
Halves, Thirds, and Fourths
Cut circles and rectangles into 2, 3, or 4 equal shares and name them.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 73
- When we share something fairly, every piece must be the same size. Those are equal shares. This pizza is cut into 2 equal shares, called halves.
- Your turn! This sandwich is cut into equal shares. Tap each one to count.
- 3 equal shares are called thirds. Each share is one third of the sandwich.
- 4 equal shares are called fourths. A fourth is also called a quarter!
- These aren't halves! The two pieces are different sizes. Shares have to be equal.
- Here's a surprise: the more shares you cut, the smaller each one gets. A half is bigger than a fourth!
Georgia's K-12 Mathematics Standards:
- 2.GSR.7.3 β Partition circles and rectangles into two, three, or four equal shares. Identify and describe equal-sized parts of the whole using fractional names ("halves," "thirds," "fourths", "half of," "third of," "quarter of," etc.).