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reSolve: Multiplication – Cartesian product
This sequence of two lessons introduces the idea of multiplication as a Cartesian product, using the language of 'for each'. Students learn to use a tree diagram to find the number of possible combinations that can be made in an animal mix-and-match book. They learn how a simpler problem can be used to help solve a larger, more complex problem. Students then design an avatar that has two or three different features and work as a class to find the total number of possible avatars. They look at how all combinations can be represented as an array and learn how to create a tree diagram. 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 program.
- Resource details
- Year level
- Year 4
- Purpose
- Teaching resource
- Strand
- Number
- Topic
- Multiplication and division
- Audience
- Teachers
- Format
- Downloadable resource
- Numeracy progression
- Multiplicative strategies (P6, P7) Additive strategies (P8) Number and place value (P7)
- Publisher
- reSolve Maths by Inquiry
- Copyright
- © Australian Government Department of Education, Skills and Employment 2021. Creative Commons BY-NC-SA 4.0.
- Keywords
- division combinations
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