Practice Problems — Set 20

2.G.A.2 · Partition a rectangle into rows and columns of same-size squares and…

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. Talk through today's focus: Partition a rectangle into rows and columns of same-size squares and… 2. Try one oral example together before writing. 3. Use the diagram to explain your thinking.

_See printable PDF for diagram._

Written practice

1. Name this shape: ___ (draw a circle) 2. How many sides? ___ How many corners? ___ 3. Find a circle at home. Draw it. 4. Flat or solid? A ball is ___. A sticker is ___. 5. Draw the shape rotated (turned sideways). 6. Compare two shapes: one way they are alike, one way different. 7. Explain your thinking for set 20 in one sentence. 8. Create your own problem for 2.G.A.2.

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More written practice

1. Apply Partition a rectangle into rows and columns of same-size squares and… (item 9, set 20): show your work. ___ 2. Apply Partition a rectangle into rows and columns of same-size squares and… (item 10, set 20): show your work. ___ 3. Apply Partition a rectangle into rows and columns of same-size squares and… (item 11, set 20): show your work. ___ 4. Apply Partition a rectangle into rows and columns of same-size squares and… (item 12, set 20): show your work. ___ 5. Apply Partition a rectangle into rows and columns of same-size squares and… (item 13, set 20): show your work. ___ 6. Apply Partition a rectangle into rows and columns of same-size squares and… (item 14, set 20): show your work. ___

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Patterns and rules

1. Shape names stay the same when you rotate the shape. 2. Flat shapes have length and width; solids take up space. 3. Compose means put together; decompose means take apart.

_See printable PDF for diagram._

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Stretch

1. Create your own 2.G.A.2 question for a parent to solve. 2. Explain your method in two sentences.

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Parent tip: Make pictures from pattern blocks