P4 Geometry 3D Shapes (nets)

Lesson 1

Cambridge Objectives

4Gs4 – Visualise 3D objects from 2D nets and drawings and make nets of common solids.

Learning IntentionsMathematicians will understand that 3D shapes can be constructed from 2D.

Success Criteria

Mathematicians will predict & construct a 3D shape from a 2D net.

ENGAGE – Mystery Bag

• Describe the object in the mystery bag to the class.

• Use words that you have been using in class to describe shapes.

Math Task

5 points total for completed journal entries.

Each student has been given a net of a shape.In your group, you can discuss your answers. Each student will complete the following in their math journal and construct their own shape.

The 2D shapes that make up this net are: _______________Prediction: I think that I will be able to construct a _________ shape with this net.Observation: I think that the name of this shape is _____________ because __________________________An example of this shape in real-life is _________________

If I finish early, I can select another net.

Reflect & Connect

Representative ShareOne member of group will get to share what they learned about their 3D shape.

P4 Geometry 3D Shapes (nets)

Lesson 2

Cambridge Objectives

4Gs4 – Visualise 3D objects from 2D nets and drawings and make nets of common solids.

Learning IntentionsMathematicians will understand that 3D shapes can be constructed from 2D.

Success Criteria

Mathematicians will identify real-life 3D shapes & construct a 3D shape from a 2D net.

ENGAGE – Exploring for 3D shapes• Look at the pictures below. State the real-life

name of the shape and its geometric name.EXAMPLE: Toy Box – Rectangular Prism

Math TaskVisualise what 3D shape would be constructed

from this 2D net.

The 2D shapes that make up this net are: _______________Prediction: I think that I will be able to construct a _________ shape with this net.Observation: I think that the name of this shape is _____________ because __________________________An example of this shape in real-life is _________________

http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/3d/index.htm

Summarizing 3D shapes

Prisms Pyramids2 identical faces (2D

shapes) on either end.2D shape as base which goes to one single point

Reflect & ConnectShare with a partner – What 3D shapes will form from each of these nets?