• Covid Recovery

Solving problems with two unknowns

Unit 11 – 2 weeks

The PowerPoint file contains slides you can use in the classroom to support each of the learning outcomes for this unit, listed below.

The slides are comprehensively linked to associated pedagogical guidance in the NCETM Primary Mastery Professional Development materials. There are also links to the ready-to-progress criteria detailed in the DfE Primary Mathematics Guidance 2020.

Learning outcomes

1 Pupils compare the structure of problems with one or two unknowns
2 Pupils compare the structure of problems with two unknowns
3 Pupils represent the structure of contextual problems with two unknowns
4 Pupils represent a problem with two unknowns using a bar model
5 Pupils explain why sometimes there is only one solution to a sum and difference problem
6 Pupils explain why sometimes there is only one solution to a sum and multiple problem
7 Pupils explain the values a part-whole model could represent
8 Pupils use a bar model to visualise how to solve a problem with two unknowns
9 Pupils use diagrams to explain how to solve a spatial problem
10 Pupils explain how to represent an equation with a bar model
11 Pupils solve problems with two unknowns in a range of contexts
12 Pupils systematically solve problems with two unknowns using ‘trial and improvement’ (one and several solutions)
13 Pupils explain how I know I have found all possible solutions to problems with two unknowns
14 Pupils explain how to balance an equation with two unknowns
15 Pupils systematically solve problems with two unknowns using ‘trial and improvement’ (one, several and infinite solutions)

 

Phase

  • Primary
  • KS2
  • Year 6
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