Unit 6, Section B
Halves, Thirds, and Fourths
Grade 2
Practice
Problem 1
Lin made this pattern block shape.
- Describe the blocks Lin used to make her shape.
- Build Lin’s shape, using only equal-size shapes.
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Problem 2
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Andre says each part of the square is a fourth. Do you agree? Explain your reasoning.
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Partition the square into 4 equal-size parts in a different way.
Problem 3
Diego cuts a square into 2 equal-size pieces. Then he cuts 1 of those pieces into 2 equal-size pieces. He says the shaded part is a third of the square. Do you agree? Explain your reasoning.
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Problem 4
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Partition the circle into 4 equal-size parts.
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Shade 3 parts blue and 1 part red.
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How much of the circle did you shade?
________________________
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Problem 5
Exploration
Is the square partitioned into fourths? Explain your reasoning.
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Problem 6
Exploration
Can you partition the square into equal-size parts?
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4 equal-size parts with 3 of the parts different shapes
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4 equal-size parts with 4 of the parts different shapes
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