| Lesson Plan |
| Grade: |
Date: 25/02/2026 |
| Subject: Physics |
| Lesson Topic: recall F = ma and solve problems using it, understanding that acceleration and resultant force are always in the same direction |
Learning Objective/s:
- Describe the vector relationship between net force and acceleration.
- Apply F = ma to calculate acceleration, force, or mass in quantitative problems.
- Analyse and solve multi‑step physics problems using the systematic F = ma strategy, checking direction consistency.
- Identify and correct common misconceptions about action‑reaction pairs and force direction.
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Materials Needed:
- Projector and screen
- Whiteboard and markers
- Printed worksheet with practice questions
- Digital slide showing key equations and vector diagrams
- Exit‑ticket slips
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Introduction:
Begin with a 30‑second video of a cart accelerating under a push to hook interest. Ask students to state, in one sentence, what determines the direction of that acceleration. Explain that today they will formalise this link using F = ma and learn a reliable problem‑solving routine. Success will be measured by correctly completing the exit ticket at the end of class.
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Lesson Structure:
- Do‑Now (5′): Quick recall quiz – two short questions on F = ma and vector direction.
- Mini‑lecture (10′): Review Newton’s 2nd law, emphasise force‑acceleration vector alignment; illustrate with on‑screen diagram.
- Guided Example (10′): Work through the 2.0 kg cart problem step‑by‑step; students predict each algebraic step before it’s shown.
- Problem‑Solving Strategy (15′): Present the 7‑step algorithm; students apply steps 1‑4 to Practice Question 1 in pairs, teacher circulates.
- Independent Practice (15′): Students solve two additional questions (sled on ice, bullet‑block collision) while noting direction checks; peer‑review answers.
- Misconception Check & Summary (5′): Use click‑questions to expose common errors; recap key points.
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Conclusion:
Recap the link between net force and acceleration and the importance of matching directions. Collect exit tickets where students write one correct statement and one lingering question. Assign homework: three mixed problems requiring the full F = ma strategy, due next lesson.
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