Lesson 3: Nets and structures

Children construct their nets to make 3D shapes to use in the construction of their castles in Lesson 4

Before the lesson

Download classroom resources

Learning objective

  • To construct 3D nets

National curriculum


  • Generate, develop, model and communicate their ideas through discussion, annotated sketches, cross-sectional and exploded diagrams, prototypes, pattern pieces and computer-aided design (Extension activity)


  • 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

Technical knowledge

  • Apply their understanding of how to strengthen, stiffen and reinforce more complex structures 

Success criteria

Cross-curricular links

Attention grabber

Main event


Pupils needing extra support: Can create simpler structures and configurations.

Work in pairs or groups.


Pupils working at greater depth: Should create more complex and wide-ranging structures.

Should use more sophisticated configurations using a mixture of their own nets and collected objects.

Wrapping up

Assessing pupils' progress and understanding


Created by:
Vicki Risianova,  
Design and 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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