Year 8 · Maths · beta

Constructions

In this unit we develop skills in using a pair of compasses and ruler to construct various accurate shapes and angles including triangles, rhombi, perpendicular lines and angle bisectors.

This is an attributed Oak National Academy lesson sequence, not a completed or academically approved DASKEREL course. Supporting transcripts may depend on video, images, practical equipment or teacher explanation. Follow each lesson’s supervision guidance. For religious education and RSHE, follow the school’s syllabus, policy and safeguarding procedures.

Prior knowledge

  • Use ruler and compass for straight-edge and arcs
  • Construct perpendiculars and bisectors
  • Interpret geometric conditions in drawings

Source curriculum references

  • Derive and use the standard ruler and compass constructions (perpendicular bisector of a line segment, constructing a perpendicular to a given line from/at a given point, bisecting a given angle); recognise and use the perpendicular distance from a point to a line as the shortest distance to the line
  • Identify and construct congruent triangles, and construct similar shapes by enlargement, with and without coordinate grids

Oak source metadata. DASKEREL has not independently verified school-level coverage.

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