Celebrity quadrilaterals: algorithms

Using a game, students develop an understanding of how a decision tree algorithm works. They apply this understanding to create their own algorithm to classify special quadrilaterals by their properties. Sequentially it is suggested that the Geometric patterns lesson is completed prior to this lesson, as it covers classifying triangles and quadrilaterals.

Additional details

Year level(s) Year 7
Audience Teacher
Purpose Teaching resource
Format Web page
Teaching strategies and pedagogical approaches Games and storybooks, Collaborative learning
Keywords algorithms, flow chart, Maths Hub lesson plan

Curriculum alignment

Curriculum connections Critical and creative thinking
Strand and focus Space
AC: Mathematics (V9.0) content descriptions
Classify triangles, quadrilaterals and other polygons according to their side and angle properties; identify and reason about relationships


Design and create algorithms involving a sequence of steps and decisions that will sort and classify sets of shapes according to their attributes, and describe how the algorithms work

Numeracy progression Understanding geometric properties (P4)

Copyright details


Commonwealth of Australia


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