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**Scheme of work: GCSE Higher: Year 9: Term 6: Constructions and Loci**

- Identify and construct a radius, diameter, circumference, area, chord, tangent and arc.
- Measure and begin to record lengths and heights
- Identify acute and obtuse angles and compare and order angles up to two right angles by size

- Identify and construct a radius, diameter, circumference, area, chord, tangent and arc.
- Measure and begin to record lengths and heights
- Identify acute and obtuse angles and compare and order angles up to two right angles by size

- It is important for students to sketch the diagram before attempting their construction. The sketch should be drawn freehand and contain all the necessary information.
- Bisectors are used to half an angle as well as a length of a line segment.
- Constructing a 60° angle using a pair of compasses is an essential skill throughout this topic as it goes on to equilateral triangles and reflex angles.

- Students often have difficulty constructing smooth arcs using a pair of compasses. Encourage them to try different techniques, such as rotating the paper rather than the compasses.
- It is important to leave in construction lines as these form the working out.

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