Exploring Polygons and 3D Shapes!

Mathematics Grades 3rd Grade 2:44 Video
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Lesson Description

Let's learn about polygons, from shapes with four sides to shapes with many sides, and then explore the world of 3D shapes!

Video Resource

Let's Explore Polygons and 3D Shapes

Miacademy Learning Channel

Duration: 2:44
Watch on YouTube

Key Concepts

  • Polygons (quadrilaterals, pentagons, hexagons, etc.)
  • Circles
  • Three-dimensional shapes (cubes, cylinders, cones, spheres)

Learning Objectives

  • Students will be able to identify and name common polygons.
  • Students will be able to describe the characteristics of a circle.
  • Students will be able to identify and name common three-dimensional shapes.
  • Students will be able to differentiate between two-dimensional and three-dimensional shapes.

Educator Instructions

  • Introduction (5 mins)
    Begin by reviewing what students already know about shapes. Ask them to name some shapes they see in the classroom or outside. Introduce the video and explain that they will be learning about different types of polygons and 3D shapes.
  • Video Viewing (7 mins)
    Play the Miacademy Learning Channel video: 'Let's Explore Polygons and 3D Shapes'. Encourage students to pay attention to the names of the shapes and their characteristics.
  • Polygon Identification (10 mins)
    Discuss polygons. What is a quadrilateral? A pentagon? A hexagon? Have students draw examples of each shape. Ask them to count the sides of each polygon.
  • Exploring 3D Shapes (10 mins)
    Discuss the 3D shapes presented in the video: cubes, cylinders, cones, and spheres. Ask students to describe each shape and identify real-world examples of each (e.g., a ball is a sphere, a can of soup is a cylinder).
  • Shape Sorting Activity (8 mins)
    Provide students with a collection of 2D and 3D shapes (or pictures of shapes). Have them sort the shapes into categories based on their characteristics (e.g., number of sides, curved vs. straight edges, 2D vs. 3D).

Interactive Exercises

  • Shape Scavenger Hunt
    Have students go on a scavenger hunt in the classroom or at home to find objects shaped like the polygons and 3D shapes they learned about. They can draw or take pictures of the objects they find.
  • Building Shapes with Playdough
    Provide students with playdough and have them create models of the polygons and 3D shapes. This hands-on activity will help them visualize the shapes and understand their properties.

Discussion Questions

  • What is the difference between a two-dimensional and a three-dimensional shape?
  • Can you name some real-world objects that are shaped like polygons or 3D shapes?
  • How are a square and a cube related?
  • How is a circle related to a sphere or a cylinder?

Skills Developed

  • Shape identification
  • Spatial reasoning
  • Vocabulary development
  • Classification

Multiple Choice Questions

Question 1:

A shape with four sides is called a:

Correct Answer: Quadrilateral

Question 2:

A shape with five sides is called a:

Correct Answer: Pentagon

Question 3:

A shape with six sides is called a:

Correct Answer: Hexagon

Question 4:

Which shape has no sides?

Correct Answer: Circle

Question 5:

Which of these is a 3D shape?

Correct Answer: Cube

Question 6:

A ball is shaped like a:

Correct Answer: Sphere

Question 7:

A can of soup is shaped like a:

Correct Answer: Cylinder

Question 8:

A figure with eight sides is called an:

Correct Answer: Octagon

Question 9:

What is the flat surface of a 3D shape called?

Correct Answer: Face

Question 10:

Which shape can be made by stretching a circle out of the board?

Correct Answer: Cylinder

Fill in the Blank Questions

Question 1:

A figure with four sides is called a ________.

Correct Answer: quadrilateral

Question 2:

A figure with five sides is called a ________.

Correct Answer: pentagon

Question 3:

A figure with six sides is called a ________.

Correct Answer: hexagon

Question 4:

A 3D shape that is round like a ball is called a ________.

Correct Answer: sphere

Question 5:

A 3D shape with a circular base and a point is called a ________.

Correct Answer: cone

Question 6:

A ________ is a series of points that are all the same distance from the center.

Correct Answer: circle

Question 7:

A stretched out circle is called a ________.

Correct Answer: cylinder

Question 8:

A stretched out square is called a ________.

Correct Answer: cube

Question 9:

A figure with eight sides is called an ________.

Correct Answer: octagon

Question 10:

The flat surface of a 3D shape is called a ________.

Correct Answer: face

Educational Standards

3.GM.1:Analyze and use geometric attributes to describe and create polygons and three-dimensional figures in various contexts. 3.GM.1.1:Sort three-dimensional shapes based on attributes.

Teaching Materials

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