Teach substitution into multi-operation expressions with a complete, classroom-ready Year 7 Core Maths PowerPoint lesson.

This carefully sequenced lesson develops pupils from prerequisite retrieval through accurate substitution, negative values, brackets, powers and the correct order of operations. It explicitly distinguishes structures such as 3x² and (3x)² and targets common errors including missing substitutions and mishandling negative values.

The lesson includes:
• six-question retrieval starter with answers;
• precise, pupil-friendly vocabulary;
• representations and a clear concept model;
• three structurally matched I Do–We Do examples;
• exactly 12 one-question mini-whiteboard checks, each followed immediately by its answer;
• 24 minimally different questions using controlled variation;
• Developing, Secure, Greater Depth and Super Challenge practice;
• a shared tier-answer slide plus a complete challenge solution;
• misconception diagnosis and correction;
• problem solving and systematic reasoning;
• three exam-style questions with mark guidance;
• an independent exit check with answers.

Every visible question has been checked and answered. Question numbering, mathematical notation and wording have been standardised, while the 16:9 design uses large classroom-readable text and compact headers. The resource is fully editable, print-free and suitable for direct classroom display, cover work, intervention or departmental planning.