## Advice on Unit Planning (1)

An effective unit plan for geometrical reasoning will allow you to incorporate the activities and approaches introduced in the previous study units in a coherent and linked series of lessons. This page and the next one describe some of the features of effective unit plans.

**Mathematical content objectives**

For example:

- identify alternate and corresponding angles

- understand a proof that the angle sum of a triangle is 180°.

**Mathematical processes and application objectives**

For example:

- visualise and manipulate dynamic images

- pose questions and make convincing arguments to justify generalisations or solutions.

**An appropriate balance between content and process objectives**, describing how these are introduced in the various phases of the unit.

For example:

- this unit of work might focus primarily on the development of mathematical process skills

- the mathematical content objectives could revisit material taught in previous units.

**The distinctive nature of the learning in the various phases of the unit**

For example:

- in this unit, the first phase could have visualisations as the main content, giving an opportunity for pupils to work with mental imagery and informal geometrical manipulation

- next, pupils could formalise geometrical arguments, using build-ups

- as a final phase, the class could tackle some of the sample exercises to consolidate their learning and build independence.