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Ministry of Education.

Lesson 7

Learning Outcome

  • Design the net for 3D containers.
  • Calculate the surface area of 3D containers.

Language Outcome

  • Understand and use common terms for 3D shape.
  • Present container design and calculations to the rest of the class.
lesson 7
Teaching and learning activities  
Write the Lesson and Language Outcomes on the board. Principles 2, 3

Packaging tennis balls

  • Handout tennis balls to the students.
  • Introduce the following problem to students:

    Balls-R-Us are re-designing their packaging. They need new boxes that will hold 4 tennis balls. Design three containers:

    1. A cylinder
    2. A cuboid
    3. A pyramid

    Calculate the surface area of each container.

  • Discuss the problem with the class. Review key words: cylinder, cuboid, pyramid, net, surface area.
  • Organise students in pairs. Allow 10-15 minutes for students to design their containers, nets and calculate the surface areas.
Principles 5, 6

Report back.

  • Students to choose their favourite container. Ask them to display their design and calculation on a OHT.
  • Students present their OHT explaining their calculation.
Principle 5

Published on: 19 Feb 2018