Lesson 4: 3D CAD skills

Recognising the pros and cons of 3D traditional modelling and 3D (CAD) computer-aided design modelling. Exploring new essential skills required to place, manoeuvre and combine 3D objects in CAD 3D modelling software.

Learning objective

  • To learn about and practise 3D CAD skills

National curriculum


Pupils should be taught to:

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



Pupils should be taught to:

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

Success criteria

Cross-curricular links

Before the lesson

Download classroom resources

Attention grabber

Main event


Pupils needing extra support: Can be provided with building bricks so they can rebuild their ideas from Lesson 3: Plastic’ and identify each individual part. Go through the Pupil video: Tinkercad basics and pause it after each stage for the pupils to copy. Can be given the ‘The Tinkercad remix project’ to pull apart and place the individual objects back together again, rather than building their own model.


Pupils working at greater depth: Can be challenged to develop their new Tinkercad skills to combine multiple objects, copying one or more of their building brick ideas. Should be encouraged to make a replica first and then to increase the difficulty. Can add more features to their model in Tinkercad.

Wrapping up

Assessing pupils' progression and understanding


Lesson 3: Plastic Previous Lesson
Created by:
Rebecca Walsh,  
Design & Technology specialist
Rebecca is a passionate Design and technology specialist with seven years of experience delivering and leading the subject. Rebecca has previously taught across all of the D&T curriculum strands, including STEM clubs and extra-curricular activities such as RAF Project X,…
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