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.
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Section A: Exploring Shapes in Our Environment

Problem 1

Describe some of the shapes you see in the picture.

Image of shapes. Some colored, some not.

Solution

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Problem 2


  1. Circle the shape that is the same as

    Blue triangle.
    Triangle.
    Square.


  2. Circle the shape that is the same as

    Blue rectangle.
    Rectangle.
    6 sided shape.

Solution

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Problem 3

How are the shapes alike?
How are they different?

  1.  
    Circle.
    Oval.

  2.  
    Square.
    Rectangle.

Solution

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Problem 4

Circle the shapes that have curved sides.

Circle.
4 sided shape.
A shape.
Triangle.
A shape.

Solution

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Problem 5

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

Solution

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Problem 6

Color in the rectangles.
Cross out the shapes that are not rectangles.
Shapes, 6.  4 rectangles. 1 circle. 1 triangle.

Solution

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Problem 7

Circle the rectangle that is longer.

a.2 rectangles.

b.2 rectangles.
c.2 rectangles.

d.2 rectangles.

Solution

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Problem 8

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

    Black dots. 4 larger red dots.

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

    Black dots. 3 larger red dots.

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

Solution

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Problem 9

What shapes do you see in this picture?

Clock face without numbers.

Solution

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Problem 10

Exploration

A colorful pattern of triangles and rectangle.
  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

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

Solution

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Section B: Making Shapes

Problem 1

  1. Fill in the pattern block puzzle.

    Pattern block puzzle. 

  2. How many green triangles did you use?

    Handwriting lines.

  3. How many yellow hexagons did you use?

    Handwriting lines.

Solution

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Problem 2

  1. Color in all of the squares.

    Pattern block puzzle.  

  2. How many squares did you color?

    Handwriting lines.

Solution

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Problem 3

Fill in the puzzle.

Pattern block 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?

A pattern made of tiles, different shapes and colors.

Solution

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Problem 6

Exploration

How many different ways can you fill in the puzzle?

Pattern block puzzle. Hexagon shape.

Solution

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Problem 7

Exploration

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

    Pattern block puzzle.
  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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