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      Lesson details

      Learning outcome

      I can join card with accuracy.

      Key learning points

      1. A prototype is made to test whether a design will work and to check dimensions and scale.
      2. Prototypes can be made from recycled materials.
      3. Using a ruler along a fold line creates an accurate bend.
      4. Design decisions have to be made to decide which joining techniques to use.

      Keywords

      • Prototype - a model version of a product for testing

      • Dimensions - the size of each part of a product

      • Assemble - put separate parts together

      • Join - attach two things together

      Common misconception

      A prototype doesn't need to be joined accurately.

      Prototypes provide a good opportunity to test accurate joining techniques.

      Teacher tip

      Use scissors for scoring at this stage. Make links to maths learning around 3D shapes and nets.

      Equipment

      Please see additional resources document for details of the resources needed for this lesson.

      Content guidance

      Risk assessment required - equipment

      Supervision

      Adult supervision required

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Which word means to make or produce something?

      sketch
      Correct answer: generate
      annotated
      critique

      Q2.
      What word is used to describe the flat or opened out shape of a 3D object?

      Correct Answer: net, a net, nets

      Q3.
      Which shaping technique was used to create this shape in card?

      An image in a quiz
      scoring
      cutting
      bending
      Correct answer: curling

      Q4.
      Which shaping method is being used here?

      An image in a quiz
      cutting
      Correct answer: scoring
      bending
      curling

      Q5.
      Why is card a good material for biscuit packaging?

      Correct answer: it is easy to shape
      it is heavy
      it is transparent (see through)
      Correct answer: it is recyclable

      Q6.
      What would you use to annotate a design?

      An image in a quiz
      An image in a quiz
      Correct Answer: An image in a quiz
      An image in a quiz
      An image in a quiz

      4 Questions

      Q1.
      What are dimensions?

      lines
      folds
      Correct answer: measurements
      shapes

      Q2.
      What is a prototype?

      Correct answer: a model
      a drawing
      a finished product
      an joining technique

      Q3.
      What does the word assemble mean?

      measure lines accurately
      Correct answer: put parts together
      cut out a shape
      use glue to join

      Q4.
      Which joining method would give the least visible finish?

      staple
      tape
      Correct answer: glue
      paperclip

      To help you plan your 3 design and technology lesson on: Assemble packaging, download all teaching resources for free and adapt to suit your pupils' needs...