# K.3 Flat Shapes All Around Us

## Unit Goals

• Students identify, describe, analyze, compare, and compose two-dimensional shapes.

### Section A Goals

• Recognize and describe shapes in the environment.
• Use informal language to describe and compare shapes and their attributes.

### Section B Goals

• Explore shapes by putting shapes together to form larger shapes.

### Problem 1

Describe some of the shapes you see in the picture.

### Solution

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### Problem 2

1. Circle the shape that is the same as

2. Circle the shape that is the same as

### Solution

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### Problem 3

How are the shapes alike?
How are they different?

1.

2.

### Solution

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### Problem 4

Circle the shapes that have curved sides.

### Solution

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### Problem 5

Color in the triangles.
Cross out the shapes that are not triangles.

### Solution

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### Problem 6

Color in the rectangles.
Cross out the shapes that are not rectangles.

### Solution

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### Problem 7

Circle the rectangle that is longer.

### Solution

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### Problem 8

1. Connect the dots.
What shape did you draw?

2. Connect the dots.
What shape did you draw?

3. Draw a shape with 4 sides and 4 corners on the dot paper

### Solution

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### Problem 9

What shapes do you see in this picture?

### Solution

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### Problem 10

#### Exploration

1. Where do you see triangles in this picture?
2. Where do you see rectangles in this picture?

### Solution

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### Problem 11

#### Exploration

1. How many different size squares do you see?
2. How many squares do you see altogether?

### Solution

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### Problem 1

1. Fill in the pattern block puzzle.

2. How many green triangles did you use?

3. How many yellow hexagons did you use?

### Solution

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### Problem 2

1. Color in all of the squares.

2. How many squares did you color?

### Solution

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### Problem 3

Fill in the puzzle.

Can you fill in the puzzle a different way?

### Solution

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### Problem 4

1. Build a shape with a hexagon, 3 triangles, and a square.
2. Describe where the square is in the shape.

### Solution

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### Problem 5

What shapes do you recognize in the picture?

### Solution

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### Problem 6

#### Exploration

How many different ways can you fill in the puzzle?

### Solution

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### Problem 7

#### Exploration

1. Fill in the pattern block puzzle in some different ways.

2. Jada filled in the puzzle with 9 pattern blocks.
Which pattern blocks do you think Jada used?
3. Can you fill in the puzzle with 3 pattern blocks?

### Solution

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