Identify angles as measures of turn and compare angle sizes in everyday situations
Compare angles and classify them as equal to, greater than or less than a right angle
Estimate, measure and compare angles using degrees.
Construct angles using a protractor Investigate, with and without digital technologies, angles on a straight line, angles at a point and vertically opposite angles. Use results to find unknown angles
Identify corresponding, alternate and cointerior angles when two straight lines are crossed by a transversal
Investigate conditions for two lines to be parallel and solve simple numerical problems using reasoning
Classify triangles according to their side and angle properties and describe quadrilaterals
Demonstrate that the angle sum of a triangle is 180° and use this to find the angle sum of a quadrilateral
Define congruence of plane shapes using transformations
Develop the conditions for congruence of triangles
Establish properties of quadrilaterals using congruent triangles and angle properties, and solve related numerical problems using reasoning
Use the enlargement transformation to explain similarity and develop the conditions for triangles to be similar
Solve problems using ratio and scale factors in similar figures
Formulate proofs involving congruent triangles and angle properties
Apply logical reasoning, including the use of congruence and similarity, to proofs and numerical exercises involving plane shapes
Prove and apply angle and chord properties of circles