A complete, editable Year 7 Core lesson on substituting into algebraic formulae. Built around I Do–We Do–You Do, it includes progressive teacher modelling, 12 immediate AFL checks, 24 minimally different questions, conceptual work on subjects and units, differentiated Developing–Secure–Greater Depth practice, a coherent Super Challenge, exam-style questions and complete worked answers. Standalone and print-free.
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DETAILED TES DESCRIPTION
Teach substituting into algebraic formulae through a carefully sequenced, classroom-ready Year 7 Core PowerPoint lesson. This editable, standalone and print-free resource moves from prerequisite retrieval and precise vocabulary into explicit representation, progressive I Do modelling and matched We Do practice. Three duplicate-slide reveal states expose only the I Do working, keeping every We Do answer concealed until the dedicated feedback slide.

The lesson includes:
• six-question retrieval starter with answers;
• explicit teaching of formula, variable, subject, substitution and units;
• a clear substitute–calculate–interpret process;
• three matched I Do/We Do pairs with large blank modelling canvases;
• exactly 12 mini-whiteboard AFL questions, each followed immediately by its answer;
• 24 minimally different substitution questions on one pupil-facing slide, followed by one consolidated answer slide;
• Developing, Secure and Greater Depth practice in a single three-column task;
• a coherent, multi-stage Super Challenge requiring systematic use of area and perimeter formulae;
• misconception diagnosis, problem solving, comparison, exam-style questions and an exit check;
• complete checked solutions and concise mark guidance.

Conceptual coverage goes beyond replacing letters with numbers. Pupils identify subjects, bind values to variables, preserve operation structure, select appropriate formulae, interpret outputs, reason about units, compare formula results and diagnose errors. Questions are written in natural mathematical English with precise command verbs, labelled quantities and traceable units.

Ideal for Year 7 Core classes, whole-class teaching, cover lessons, revision or departmental curriculum planning. No printing or additional worksheet is required.