Coding a geometric construction

In this activity students will learn how to code a geometric construction. They’ll do this by matching a set of instructions to the correct geometric construction.

Learners will be introduced to the concept of Computer Numeric Controlled (CNC) machines. They’ll also be taught about the role of coding in executing precise tasks, such as bisecting an angle.

This is one of a set of resources developed to aid the teaching of the secondary national curriculum, particularly KS3, supporting the teaching in maths or design & technology (D&T).

Activity: Following coded instructions for bisecting an angle

Students will use Robocompass, a web tool that lets leaners simulate geometric constructions on a computer screen. They will match each diagram with the correct instruction and arrange them so that they can create a storyboard of how to draw and bisect an angle.

Download our activity overview for a detailed lesson plan for teaching students about coding a geometric construction.

The engineering context

Computer Numeric Controlled (CNC) machines follow pre-programmed instructions to execute tasks with precision, much like the coded geometric constructions students will work on in this activity. For example, CNC machines are used by engineers in manufacturing industries for common tasks such as cutting, drilling, and shaping materials.

Suggested learning outcomes

Students will learn how to bisect an angle while also learning how coded instructions can be used to execute geometric constructions.

Download our activity sheet and other teaching resources

The activity sheet includes teachers’ notes, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved nations; England, Northern Ireland, Scotland and Wales.

All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students’ and your schools’ needs.

Download our classroom lesson plan and presentation below.

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