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A series of lessons designed to build and extend student knowledge on how shapes are transformed and enlarged using various scale factors. A variety of support material is provided to assist with teaching and scaffolding the lessons. The inquiry is structured around student questions and worked examples, and is designed to encourage students to work collaborativley to build mathematical knowledge and to extend themselves. Students are provided with an assessment task where they have the option to choose between three inquiry questions. Students then use their prior knowledge from previous lessons to work through their chosen question. Additionally, downloadable resources are provided to assist with teaching the topic.
|Year level(s)||Year 9|
|Purpose||Assessment advice, Assessment task, Extension, Planning support, Student task, Teaching resource, Teaching strategies|
|Teaching strategies and pedagogical approaches||Worked examples, Collaborative learning, Differentiated teaching, Feedback, Mathematics investigation, Metacognitive strategies, Questioning, Structuring lessons|
|Keywords||enlargements (postive and negative), transformations (rotation, translation, reflection), scale factor, linear, area scale factor|
|Curriculum connections||English, Critical and creative thinking, Numeracy|
|Strand and focus||Geometry, Measurement, Apply understanding, Build understanding|
|Topics||Proportion, rates and ratios, Shapes and objects, Angles and geometric reasoning, Location|
|AC: Mathematics content descriptions||
ACMMG221 Solve problems using ratio and scale factors in similar figures
|National numeracy learning progression||
Understanding geometric properties
Comparing units (ratios, rates and proportion)
© Andrew Blair 2012-21. Creative Commons BY-NC-SA 4.0.