Algebra: solving equations
KS3 · 25 minutes · Solve linear equations with the unknown on one side.
Answer by: Type. You can change method or take a break at any time.
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Our learning goal
Solve linear equations with the unknown on one side.
Your turn: Choose one thing you would like to understand by the end.
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My lesson notes & project
Full teaching script
- Today: Algebra: solving equations. Our goal: Solve linear equations with the unknown on one side.
- Take one idea at a time. Pause after each sentence; ask for repetition whenever you need it.
- An equation is a balance. Whatever you do to one side you must do to the other. To solve 3x + 4 = 19, take 4 from both sides (3x = 15), then divide both sides by 3 (x = 5). Always substitute your answer back to check.
- Together: choose one example from the explanation and show how it works. What do you notice?
- Your turn: Solve 5x − 7 = 28 and 4(x + 2) = 20.
- Reflect: what made sense, and what would you like explained differently?
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