Lesson 4: Assembly and testing

After attaching the nets that they made in Lesson 3, children carry out time trials and other competitions to test and compare their cars

Before the lesson

Classroom resources

Learning objective

  • To assemble and test my completed product


National curriculum

Pupils should be taught to:


  • Select from and use a wider range of tools and equipment to perform practical tasks [for example, cutting, shaping, joining and finishing], accurately
  • Select from and use a wider range of materials and components, including construction materials, textiles and ingredients, according to their functional properties and aesthetic qualities


  • Evaluate their ideas and products against their own design criteria and consider the views of others to improve their work

Technical knowledge

  • Apply their understanding of how to strengthen, stiffen and reinforce more complex structures
  • Understand and use mechanical systems in their products [for example, gears, pulleys, cams, levers and linkages]


Success criteria

Cross-curricular links

Attention grabber

Main event


Pupils needing extra support: Will need more assistance with glueing the pieces of the body together and to the chassis. They might need further prompting to identify why some cars are faster than others.


Pupils working at greater depth: Can also test other aspects of their design, such as:

  • testing it over a bumpy track, ie: over a single layer of corrugated card
  • how straight a line it travels in (if the axle/chassis isn’t straight it will travel in a curve)
  • how far it can travel

Wrapping up

Assessing pupils' progress and understanding


Created by:
Vicki Risianova,  
Design & Technology specialist
After 4 years of being a TV and radio presenter, Vicki headed to the secondary classroom where she spent 12 years teaching Design and Technology as well as PE. Working as a subject leader, she ran D&T tournaments and weekly…
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