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      Develop ideas through annotated sketches

      Lesson details

      Learning outcome

      I can develop a meaningful and authentic design brief.

      Key learning points

      1. Design specification outlines the key problems to solve.
      2. Sketching allows designers to generate lots of ideas.
      3. Choosing and finalising a design to use may mean combining ideas.

      Keywords

      • Design specification - a list of things a product must have or do

      • Annotate - write notes on a design to add information

      • Evaluate - to judge how well a product meets design criteria

      Common misconception

      Design drawings must be technical and include detail.

      Simple drawings can be annotated to add the extra information and detail needed to understand the design.

      Teacher tip

      Have resources, such as boxes, bottles, syringes, tubes and balloons, available for pupils to look at and handle. This will aid their drawing and help them see how components can be attached. Be aware of pupils with latex allergies if using latex balloons.

      Equipment

      Paper, pencils, rulers, small cardboard boxes (egg boxes, teabag boxes, tissue boxes, etc), plastic syringes (10 ml and 20 ml), plstic tubing (4 or 5 mm) and balloons.

      Content guidance

      Risk assessment required - may contain allergens

      Supervision

      Adult supervision required

      Licence

      This content is © Oak National Academy Limited (2025), 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.
      An is something that goes into the system.

      Correct Answer: input

      Q2.
      The is what happens as a result of the input.

      Correct Answer: output

      Q3.
      When using two outputs in a simple pneumatic system, what additional component is needed?

      Additional bottle
      Correct answer: Y connector
      Additional plunger
      S connector

      Q4.
      Why would a larger bottle inflate a balloon quicker?

      Correct answer: more air forced in with each squeeze
      it’s easier to hold
      less air moving along the tube each squeeze

      Q5.
      Select all the possible input sources used in pneumatic systems.

      Correct answer: wind
      pumps
      movement
      tubes
      our lungs

      Q6.
      Put these statements about creating movement using a simple pneumatic system in order.

      1 - Air is squeezed out of the bottle.
      2 - It is forced along the tube to the balloon.
      3 - It fills the balloon which inflates and expands.
      4 - The top jaw of the crocodile toy lifts.

      5 Questions

      Q1.
      A design specification is a list of product __________ that are decided before a product is designed and made.

      Correct answer: requirements
      designs
      costs
      materials

      Q2.
      True of false? A design specification should be written before the designer designs and makes a product.

      Correct answer: true
      false

      Q3.
      What is another name for notes added onto a design to add information?

      Correct Answer: annotations, annotate

      Q4.
      Which word means the same as drawing?

      annotating
      generating
      Correct answer: sketching

      Q5.
      Evaluations …

      tell you how to build a product.
      show what the final product will look like.
      Correct answer: check ideas meet design specifications.

      To help you plan your 3 design and technology lesson on: Develop ideas through annotated sketches, download all teaching resources for free and adapt to suit your pupils' needs...