Please note: This site contains links to websites not controlled by the Australian Government or ESA. Read more in the Terms of Use.

reSolve: Mechanical linkages – quadrilaterals

This unit is part of the reSolve ‘Mechanical Linkages and Deductive Geometry’. This unit focuses on investigating geometry, starting with real-life objects, then making working models and finally using pre-prepared dynamic geometry software. This unit uses the properties of quadrilaterals, especially rhombuses and parallelograms, to explain how these tools and objects move. The lessons are independent of each other and can be taught in any combination.

Additional details
Year level(s)	Year 8
Audience	Teacher
Purpose	Content knowledge, Teaching resource, Student task
Format	Web page
Teaching strategies and pedagogical approaches	Explicit teaching
Keywords	congruent, quadrilateral, side, angle, triangle, transformation, plane shape
Curriculum alignment
Curriculum connections	Critical and creative thinking, Numeracy
Strand and focus	Space
Topics	Angles and geometric reasoning
AC: Mathematics (V9.0) content descriptions	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
Numeracy progression	Understanding geometric properties (P6, P7) Proportional thinking (P6)
Copyright details
Organisation	reSolve Maths by Inquiry
Copyright	© Australian Government Department of Education,Skills and Employment 2021. Creative Commons BY-NC-SA 4.0.