Practice Problems — Set 15

1.G.A.2 · Compose two-dimensional shapes (rectangles, squares, trapezoids, tria…

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

Warm-up

1. Talk through today's focus: Compose two-dimensional shapes (rectangles, squares, trapezoids, tria… 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 rectangle) 2. How many sides? ___ How many corners? ___ 3. Find a rectangle 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 15 in one sentence. 8. Create your own problem for 1.G.A.2.

___________________________ ___________________________ ___________________________ ___________________________

More written practice

1. Apply Compose two-dimensional shapes (rectangles, squares, trapezoids, tria… (item 9, set 15): show your work. ___ 2. Apply Compose two-dimensional shapes (rectangles, squares, trapezoids, tria… (item 10, set 15): show your work. ___ 3. Apply Compose two-dimensional shapes (rectangles, squares, trapezoids, tria… (item 11, set 15): show your work. ___ 4. Apply Compose two-dimensional shapes (rectangles, squares, trapezoids, tria… (item 12, set 15): show your work. ___ 5. Apply Compose two-dimensional shapes (rectangles, squares, trapezoids, tria… (item 13, set 15): show your work. ___ 6. Apply Compose two-dimensional shapes (rectangles, squares, trapezoids, tria… (item 14, set 15): show your work. ___

___________________________ ___________________________ ___________________________ ___________________________ ___________________________

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._

___________________________ ___________________________ ___________________________ ___________________________

Parent tip: Make pictures from pattern blocks