Please note: This site contains links to websites not controlled by the Australian Government or ESA. More information here.
Discovering triangle congruence shortcuts
In this lesson sequence, students will work in pairs using construction to test ‘shortcuts’ to use when proving triangles congruent.
|Year level(s)||Year 8|
|Purpose||Teaching resource, Student task|
|Teaching strategies and pedagogical approaches||Explicit teaching|
|Keywords||Congruent, Quadrilateral, Side, Angle, Triangle, Transformation, Plane shape|
|Curriculum connections||Critical and creative thinking, Numeracy|
|Strand and focus||Space|
|Topics||Angles and geometric reasoning|
|AC: Mathematics (V9.0) content descriptions||
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
Establish properties of quadrilaterals using congruent triangles and angle properties, and solve related problems explaining reasoning
Understanding geometric properties (P6, P7)
Proportional thinking (P6)
© Jessica Uy. Creative Commons BY-NC 4.0.