Lesson 3: Prototypes

Children learn about the benefits of prototyping as part of the design process, to test the form and function of an idea. They then create their own prototype case, using card and papercraft techniques, for the mindful moments timer to complete their programmed product.

Learning objectives

  • To design, make and develop a prototype case for my mindful moment timer

National curriculum


Pupils should be taught to:

  • Select from and use a wider range of tools and equipment Items and objects which are needed to complete a task. to perform practical tasks [for example, cutting, shaping, joining and finishing], accurately



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: Should work in pairs or small groups to create one case from a net template (Activity: Box net) with their combined ideas on one Activity: Prototype plan and photocopy the finished page. Can be provided with the Activity: Shape support sheet and/or the Activity: Woodland creatures printable decorations (slide 6 of the Presentation: Prototypes provides examples of how this resource can be used) to support ideas beyond the Activity: Box net. Have some pre-cut box nets, so you can divert the focus onto the design if necessary. Can be provided with the Activity: Stand support sheet as a template to cut and make stands for their box.


Pupils working at greater depth: Can experiment with alternative 3D net designs, after the initial prototype. Can create their own paper additions, including stand designs. Use the Activity: Hexagonal prism net to increase the complexity and challenge them to construct it independently having followed the box net construction (Activity: Box net). Double-sided tape can be used to achieve a neater finish and provides an option for children to improve on the original net construction.

Wrapping up

Assessing pupils' progression and understanding


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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