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 sample Q from each layer teach-learn questions layer 1 2 3 4 5 6 7 8 9 10 11 12 practise-learn worksheets print hints d/s 1pp d/s 1pp d/s 2pp d/s 2pp

### NC information

National curriculum code and descriptions (partially) covered by the layers.

G1Â use conventional terms and notation: points, lines, vertices, edges, planes, parallel lines, perpendicular lines, right angles, polygons, regular polygons and polygons with reflection and/or rotation symmetries;Â use the standard conventions for labelling and referring to the sides and angles of triangles;Â draw diagrams from written description

G3Â apply the properties of angles at a point, angles at a point on a straight line, vertically opposite angles; understand and use alternate and corresponding angles on parallel lines; derive and use the sum of angles in a triangle (e.g. to deduce and use the angle sum in any polygon, and to derive properties of regular polygons)

G6Â apply angle facts, triangle congruence, similarity and properties of quadrilaterals to conjecture and derive results about angles and sides, including Pythagorasâ€™ theorem and the fact that the base angles of an isosceles triangle are equal, and use known results to obtain simple proofs

G10Â apply and prove the standard circle theorems concerning angles, radii. tangents and chords and use them to prove results