2. Operating on number
Theme 2 is Operating on number. It comprises two interconnected core concepts, each of which covers a set of ‘knowledge, skills and understanding’ statements.
For each core concept, we have produced a detailed guidance document underpinned by a clear set of pedagogical principles and practices to support planning. Each document offers an overview of the content within the statements of knowledge, skills and understanding, and breaks them down further into focused key ideas.
At the end of the documents, some of the key ideas are exemplified, to demonstrate what planning for secure and deep understanding of mathematics at Key Stage 3 might involve. Other key ideas are left for individual departments and teachers to work on, alongside existing material and schemes.
There is also a guidance document that offers an overview of the theme as a whole.
Click the links below to download the documents.
- 2 Operating on number
Theme 2 is about students understanding the structures underpinning calculation using each of the four operations. It includes the solving of equations, which is essentially concerned with operations on, as yet, unknown numbers
- 2.1 Arithmetic procedures
This core concept offers guidance on developing a strong understanding of the mathematical structures that underpin the standard procedures for calculation with decimals, fractions and directed numbers
- 2.2 Solving linear equations
This core concept explores how linear equations are effectively the formulation of a series of operations on unknown numbers and how the solving of such equations is concerned with undoing these operations to find the value of the unknown
The NCETM and Maths Hubs would like to thank the following for their contribution to the materials:
- Secondary mathematics specialists: Debbie Barker; Frances Carr; Clare Dawson; Pete Griffin; Alison Hopper; Carol Knights; Steve Lomax; Richard Perring; Pete Sides; Gwen Tresidder; Maths Hubs Secondary Mathematics Specialists
- Educational consultant: Dr Alf Coles, University of Bristol
- Editorial and production: Natasha Chippendale; Charlotte Christensen; Bronwyn Enright; Jackie Mace; David Mantovani; Andrew Young
- Illustrations: Steve Evans