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Big ideas in geometric reasoning

Part of the Top Drawer Teachers - Big Ideas series, this resource gives an overview of some of the important ideas in geometry:

There are sections about common misunderstandings, teaching and assessment strategies, and student activities.

Additional details
Year level(s)	Year 7, Year 8
Audience	Teacher, School Leader
Purpose	Content knowledge
Format	Web page
Keywords	geometry, congruence, similarity, shape
Curriculum alignment
Strand and focus	Space
Topics	Angles and geometric reasoning, Shapes and objects
AC: Mathematics (V9.0) content descriptions	AC9M7SP02 Classify triangles, quadrilaterals and other polygons according to their side and angle properties; identify and reason about relationships AC9M8SP01 Identify the conditions for congruence and similarity of triangles and explain the conditions for other sets of common shapes to be congruent or similar, including those formed by transformations AC9M8SP02 Establish properties of quadrilaterals using congruent triangles and angle properties, and solve related problems explaining reasoning AC9M7M03 Describe the relationship between π and the features of circles including the circumference, radius and diameter
Numeracy progression	Understanding geometric properties (P4, P5, P6) Understanding units of measurement (P9) Proportional thinking (P6)
Copyright details
Organisation	Education Services Australia Ltd
Copyright	© 2013 Education Services Australia Ltd. Free-for-education material.