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Parallel lines and related angles

This GeoGebra applet interactive allows students to move the lines and observe the changes to the angles in and around the parallel lines. The task reinforces mathematical vocabulary and asks students to draw conclusions about the intersection of the transversal and parallel lines.

Additional details
Year level(s)	Year 7
Audience	Teacher
Purpose	Teaching resource
Format	Interactive
Teaching strategies and pedagogical approaches	Feedback, Mathematics investigation
Keywords	parallel lines, transversal, alternate angles, corresponding angles
Curriculum alignment
Curriculum connections	Numeracy
Strand and focus	Space
Topics	Angles and geometric reasoning
AC: Mathematics (V9.0) content descriptions	AC9M7M04 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 AC9M7M05 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
Numeracy progression	Understanding geometric properties (P6)
Copyright details
Organisation	GeoGebra
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