Shape Detectives: Finding Congruent Shapes!

Math Grades 1st Grade 7:01 Video
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Lesson Description

Let's learn about congruent shapes! Congruent shapes are the same shape and the same size. We'll practice finding and drawing them!

Video Resource

Grade 1: Math Lesson #96 Drawing Congruent Shapes And Designs

The Eagle's Nest - Our Online Classroom

Duration: 7:01
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Key Concepts

  • Congruent Shapes: Shapes that are the same shape and size.
  • Shape: The form of an object (e.g., square, triangle, circle).
  • Size: How big or small something is.

Learning Objectives

  • Students will be able to define congruent shapes as shapes that are the same shape and size.
  • Students will be able to identify congruent shapes from a group of shapes.
  • Students will be able to draw congruent shapes.

Educator Instructions

  • Introduction (5 mins)
    Start by watching the video 'Grade 1: Math Lesson #96 Drawing Congruent Shapes And Designs'. As you watch, pay close attention to the definition of congruent shapes and the examples given.
  • Shape and Size Action (5 mins)
    Practice the actions from the video! When I say "shape," make a triangle with your hands. When I say "size," stretch your arms out wide. Repeat the phrase 'Congruent means the same shape and the same size' with the actions.
  • Shape Hunt (10 mins)
    Look around the classroom (or your house if learning remotely). Can you find two things that are congruent? Remember, they must be the same shape AND the same size! Draw them in your math notebook.
  • Geo Board Practice (10 mins)
    If you have a Geo Board (or dot paper), try making shapes that are congruent. Make a shape on the Geo Board, then try to make the same shape and size in a different spot on the board.
  • Congruent Shape Drawing (10 mins)
    On a piece of paper, draw a square. Now, draw another square that is the EXACT same size. You've just drawn two congruent squares! Try it with different shapes.
  • Quiz Time! (5 mins)
    Complete the multiple-choice and fill-in-the-blank quizzes to show what you've learned about congruent shapes.

Interactive Exercises

  • Congruent Shape Sorting
    Draw a variety of shapes on index cards (squares, circles, triangles, rectangles) with varying sizes. Have students sort the cards into groups of congruent shapes.
  • Dot Paper Drawings
    Provide students with dot paper. Ask them to draw a shape on one part of the paper, then draw a congruent shape somewhere else on the paper.

Discussion Questions

  • What does it mean for shapes to be congruent?
  • Can two shapes be the same shape but not be congruent? Why or why not?
  • Where do you see congruent shapes in the world around you?

Skills Developed

  • Shape Recognition
  • Visual Discrimination
  • Fine Motor Skills (drawing)

Multiple Choice Questions

Question 1:

What does it mean for shapes to be congruent?

Correct Answer: Same shape and size

Question 2:

Which of these shows congruent shapes?

Correct Answer: Two squares that are the same size

Question 3:

If two triangles are congruent, what is true about them?

Correct Answer: They are the same shape and size

Question 4:

Which of these is NOT important for shapes to be congruent?

Correct Answer: Same color

Question 5:

Are these shapes congruent? (Show two different sized squares)

Correct Answer: No

Question 6:

Are these shapes congruent? (Show two shapes the same size and shape)

Correct Answer: Yes

Question 7:

What is shape?

Correct Answer: The form of an object

Question 8:

What is size?

Correct Answer: How big or small something is

Question 9:

What is something that we can draw on to make congruent shapes?

Correct Answer: All of the above

Question 10:

When shapes are congruent, what do they have?

Correct Answer: The same size and shape

Fill in the Blank Questions

Question 1:

Congruent shapes are the same _______ and the same size.

Correct Answer: shape

Question 2:

If two circles are the same shape and same size, they are ________.

Correct Answer: congruent

Question 3:

A square and a triangle are NOT ________.

Correct Answer: congruent

Question 4:

If two shapes are congruent, you can put one on top of the other, and they will ________.

Correct Answer: match

Question 5:

Two shapes must be the same ________ to be congruent

Correct Answer: size

Question 6:

Congruent shapes must have the exact same _______.

Correct Answer: shape

Question 7:

We can use a ______ to draw shapes that are the same.

Correct Answer: geoboard

Question 8:

If one circle is big and another circle is small, they are _______ congruent

Correct Answer: not

Question 9:

Squares have four _______.

Correct Answer: sides

Question 10:

Triangles have three _______.

Correct Answer: sides

Educational Standards

CCSS.Math.Content.1.G.A.1:Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes. CCSS.Math.Content.1.G.A.2:Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape. (Students do not need to learn formal names such as "right rectangular prism.")

Teaching Materials

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