A fully resourced, exam-focused lesson pack on Break-Even Analysis for Edexcel International GCSE Business (4BS1) — completely free.
This pack covers topic 3.3.2 from the Business Finance unit, taking students from the core formula through to diagram interpretation and higher-level evaluation.
What’s included:

Lesson PowerPoint (18 slides) — Do Now, key terms, modelled examples, two student activities, common misconceptions and plenary
Differentiated Worksheet — Section A (Core), Section B (Application) and Section C (Challenge/Evaluation)
Homework Task — calculations plus an evaluation question
Teacher Answer Sheet — full worked answers for all worksheet and homework questions

What students will learn:

The contribution formula: Selling Price − Variable Cost per Unit
The break-even formula: Fixed Costs ÷ Contribution per Unit
How to read and interpret a break-even diagram — profit area, loss area, margin of safety
How changes in fixed costs or selling price affect the break-even point
How to analyse and evaluate break-even in a business context