• Classroom Videos

Multiplicative Reasoning

Lesson videos on representations in terms of the bar model and double number line are used to support reasoning and problem solving

Multiplicative reasoning is central to the KS3 curriculum, but needs to begin at Primary. Representations in terms of the bar model and double number line are used to support reasoning and problem solving, which will in turn support problem solving.

You may find it useful to download the videos to your own device. Also, there are accompanying PowerPoint files for each video at the bottom of this page. If you encounter any problems, please contact us.

Multiplicative Reasoning - Key Stage 2 | Y3 - bar model for multiplication

Introducing the bar model for multiplication
Introducing the bar model for multiplication
Pupils first attempt at using bar model for multiplication problems
Pupils first attempt at using bar model for multiplication problems
Pupils continue using bar model for multiplication problems
Pupils continue using bar model for multiplication problems
Extending the use of the bar model
Extending the use of the bar model

Multiplicative Reasoning - Key Stage 3 | Ratio and proportion

Estimating related lengths
Estimating related lengths
Calculating related quantities
Calculating related quantities

Accompanying PowerPoints – Key Stage 2

Accompanying PowerPoints – Key Stage 3

Phase

  • Primary
  • KS1
  • KS2
  • KS3

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