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Parallel lines and the angle sum of a triangle
From the AMSI ‘Supporting Australian Mathematics Project’, this resource gives detailed explanations for teachers and students of the curriculum content, worked examples and assessment questions.
|Year level(s)||Year 7|
|Purpose||Content knowledge, Teaching resource, Student task|
|Teaching strategies and pedagogical approaches||Explicit teaching|
|Keywords||Angles, Parallel, Co-interior, Alternate, Triangle, Interior|
|Curriculum connections||Critical and creative thinking, Numeracy|
|Strand and focus||Space|
|Topics||Angles and geometric reasoning|
|AC: Mathematics (V9.0) content descriptions||
Identify corresponding, alternate and co-interior relationships between angles formed when parallel lines are crossed by a transversal; use them to solve problems and explain reasons
Demonstrate that the interior angle sum of a triangle in the plane is 180° and apply this to determine the interior angle sum of other shapes and the size of unknown angles
Understanding geometric properties (P6)
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