Lesson Plan

• Describe the magnetic‑force equations for a moving charge and for a current‑carrying conductor.
• Apply the right‑hand rule to determine the direction of the force on positive and negative charges.
• Analyse the vector relationship between velocity (or current), magnetic field and force and predict the force direction for given scenarios.
• Identify and correct common misconceptions about charge sign and force direction.

• Projector or interactive whiteboard
• Slide deck showing the right‑hand rule diagrams
• Printed worksheets with vector diagrams
• Small bar magnets and a compass for a quick demo
• Wire with a battery to demonstrate a current‑carrying conductor
• Rulers, protractors, and exit‑ticket cards

Begin with a striking question: “If a particle beam enters a magnetic field, which way will it bend?” Connect this to students’ prior knowledge of vectors and the Lorentz force. State the success criteria: students will be able to use the right‑hand rule to predict force direction for any charge or current.

1. Do‑now (5') – Mini‑quiz on vector cross‑product concepts.
2. Mini‑lecture (10') – Review the equations F = q v × B and F = I L × B; introduce the right‑hand rule with animated slides.
3. Guided demonstration (8') – Use a magnet, compass, and a current‑carrying wire to visualise B and the resulting force direction.
4. Paired practice (12') – Students solve two worked‑example problems, applying the right‑hand rule while the teacher circulates for feedback.
5. Misconception check (5') – Clicker poll on common errors (e.g., electron flow vs. conventional current) followed by brief discussion.
6. Checklist activity (5') – Complete the “Quick Checklist for Determining Force Direction” on the worksheet.
7. Exit ticket (5') – Write the force direction for a new scenario (e.g., electrons moving north in a field pointing east).

Recap the right‑hand rule steps and emphasise how charge sign reverses the force direction. Collect exit tickets to gauge understanding, and assign homework: three additional force‑direction problems from the textbook.