• Mastery PD Materials

Operating on number

Theme 2 comprises two core concepts: arithmetic procedures; solving linear equations.

Operating on number

The links immediately below take you to pages dedicated to each core concept, which include all the classroom and professional development resources you need.

Underneath the links to the core concept pages, you can download an overview of the entire theme, and a single download of all core concept documents within the theme.

2.1 Arithmetic procedures

Core concept 2.1 offers guidance on developing understanding of the mathematical structures that underpin standard procedures for calculation with decimals, fractions and directed numbers.

2.2 Solving linear equations

Core concept 2.2 explores how linear equations are effectively the formulation of a series of operations on unknown numbers and how solving them involves undoing these operations.


  • Secondary
  • KS3
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