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reSolve: Real-world algebra – linear functions

This sequence of two lessons explores real-world, algebraic, numeric and graphical representations of linear functions, focussing on the gradient of linear functions. Students use images of everyday objects and inscribe straight lines, then use GeoGebra to explore the algebraic representation of their lines. Each lesson is outlined in detail including curriculum links, vocabulary, materials needed, sample answers, discussion points and student resources. This sequence is part of the reSolve: Mathematics by Inquiry special topic 'Bringing the real world into algebra'.

Additional details
Year level(s)	Year 8
Audience	Teacher
Purpose	Teaching resource
Format	Downloadable resources
Teaching strategies and pedagogical approaches	Mathematics investigation
Keywords	linear equations, geogebra, maths investigations, Cartesian coordinates, gradients
Curriculum alignment
Curriculum connections	Numeracy
Strand and focus	Algebra, Build understanding
Topics	Linear relationships
AC: Mathematics (V9.0) content descriptions	AC9M8A02 Graph linear relations on the Cartesian plane using digital tools where appropriate; solve linear equations and one-variable inequalities using graphical and algebraic techniques; verify solutions by substitution
Numeracy progression	Number patterns and algebraic thinking (P7)
Copyright details
Organisation	reSolve Maths by Inquiry
Copyright	© Australian Government Department of Education, Skills and Employment 2021. Creative Commons BY-NC-SA 4.0.