Geometric reasoning
Based on the Australian Curriculum, Geometric reasoning in Mathematics Year 7 includes:
- ACMMG163 Identify corresponding, alternate and co-interior angles when two straight lines are crossed by a transversal
- ACMMG164 Investigate conditions for two lines to be parallel and solve simple numerical problems using reasoning
- ACMMG166 Demonstrate that the angle sum of a triangle is 180° and use this to find the angle sum of a quadrilateral
- ACMMG165 Classify triangles according to their side and angle properties and describe quadrilaterals
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2D Shapes with Information – Poster
A 2D shapes poster with 16 common shapes, as well as information characterising each shape.
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Angle Word Problems – Worksheet
Download these angles word problem worksheets so your students can practise calculating missing angles.
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Supplementary Angles – Year 6 Maths Worksheet
Teach your students to identify and calculate supplementary angles with this one-page maths worksheet.
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Complementary Angles – Year 6 Maths Worksheet
Teach your students to identify and calculate complementary angles with this one-page maths worksheet.
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Types of Triangles Poster
A poster depicting and explaining the four types of triangles.
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2D Shapes Poster
Use this colourful poster with a collection of 2D shapes in your maths classroom.
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Parallel and Perpendicular Lines Games — Sorting Activity
Play parallel and perpendicular lines games in your classroom to give students practice sorting lines into intersecting, parallel, or perpendicular line categories.
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Individual 2D Shapes Posters - BW
2D Shapes and their names, diagrams and properties on individual posters.
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2D Shape Poster Set
Use this set of 16 brightly coloured 2D shapes with your geometry lessons.
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Advanced Angles Teaching Slides
Teach your students about advanced angle types with this teaching presentation perfect for upper primary school maths lessons.
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Finding Alternate Angles – Year 7 Maths Worksheet
Identify and calculate alternate angles with this one-page maths worksheet.
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Advanced Angles Factsheet
Teach your students about angles and their properties with with this easy reference fact sheet.
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Finding Co-Interior Angles – Year 7 Maths Worksheet
Identify and calculate co-interior angles with this one-page maths worksheet.
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Intersecting, Parallel and Perpendicular Lines Worksheet Set
Use this intersecting, parallel and perpendicular lines worksheet set to introduce your students to basic line concepts.
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Interior Angles of Shapes Teaching Slides
Explore the interior angles of common two-dimensional shapes with this comprehensive set of teaching slides.
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Classifying Triangles (By Angles) Sorting Activity
Play this sorting game when learning how to classify triangles according to their internal angles.
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Advanced Angles Poster Pack
Teach your students about alternate, co-interior, corresponding and vertically opposite angles with this set of classroom posters.
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Finding Corresponding Angles – Year 7 Maths Worksheet
Identify and calculate corresponding angles with this one-page maths worksheet.
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Angle Sum of a Triangle – Year 7 Maths Worksheet
Calculate the missing angle in a variety of triangles with this one-page worksheet.
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I Have, Who Has? – Complementary and Supplementary Angles Game
Play a whole-class game to review complementary and supplementary angles.
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Types of Triangles Interactive Game
Explore the properties of acute, right and obtuse triangles with this interactive space adventure!
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Classifying Triangles (By Angles) Worksheets
Practise classifying and sorting triangles based on their internal angles with this set of 3 worksheets.
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Angle Sum of a Quadrilateral – Year 7 Maths Worksheet
Calculate the missing angle in a variety of quadrilaterals with this one-page worksheet.
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2D Shapes Blue Print Poster
2D Shapes and their names on one poster.
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Building With Angles – Interactive Game
Transport your students to a local construction site to solve building-related angle problems with this interactive maths game.
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Interior Angles of Shapes Interactive Game
Explore the interior angles of regular polygons with this detective-themed interactive maths activity.
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Interior Angles of Shapes – Differentiated Mazes
Explore the interior angles of regular shapes with this differentiated, maze-inspired worksheet.
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Interior Angles of Shapes Sorting Activity
Play this sorting game when learning about the interior angles of common two-dimensional shapes.