The circuit builder draws circuit diagrams from standard GCSE symbols. Drag components onto the circuit, set their values, and the meter readings are calculated live from the circuit you built.
A hand-built replica of the real builder page, not a screenshot. Every control shown exists in the product.
A circuit drawn freehand never quite works, the symbols wobble and the readings are made up. Here the symbols are the exam ones, the layout stays square, and the readings are real, the ammeter above shows 0.21 A because the supply genuinely is 2.5 V across 12 Ω of lamps.
Click any component to change its value, swap it or hide the numbers, and the diagram becomes a question. Export it for a worksheet or open it in the presenter and work on the board.
Diagnostic multiple choice. Each answer reveals what the class does and doesn't understand.
Answers revealed when you click. Great for starters or extension questions.
Match keywords to their definitions. Great for prior learning or end-of-lesson review.
Every tool turns a few inputs into a clean, exam-ready diagram.
Equation selection, rearrangement and substitution practice, step by step.
Free-body diagrams, resolve into components, find the resultant on GCSE graph paper.
Before and after collision diagrams with selectable unknowns and a step-by-step reveal.
Graph-paper lens, focal points and object for teaching ray construction.
Curated GCSE nuclear equations covering alpha, beta, fission, fusion and decay chains.
Practical results tables with repeat readings, a mean and an optional anomaly, plus curated reference data.
Upload any diagram and the labels are suggested for you to drag, edit and blank.
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