Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Physics
Lesson Topic: Describe the use of voltmeters (analogue and digital) with different ranges
Learning Objective/s:
  • Describe how analogue and digital voltmeters measure potential difference.
  • Select the appropriate voltage range for accurate measurements with both meter types.
  • Demonstrate correct parallel connection of voltmeter leads.
  • Compare accuracy, internal resistance and reading methods of analogue vs digital meters.
  • Identify common errors and apply precautions when using voltmeters.
Materials Needed:
  • Analogue voltmeter (or multi‑meter with analogue mode)
  • Digital voltmeter (DVM) with auto‑range function
  • Simple circuit (battery, resistor or lamp)
  • Connecting leads (red and black probes)
  • Worksheet with measurement tasks
  • Projector or interactive whiteboard for slides
  • Whiteboard and markers
 Introduction:
Begin with a quick demonstration of a lit LED circuit measured with both an analogue and a digital voltmeter. Ask students what they notice about the displays and recall prior experience with voltmeters. Explain that by the end of the lesson they will be able to choose the correct range, connect the meter properly and interpret the readings accurately.
Lesson Structure:
  1. Do‑now (5'): Complete a short quiz on potential difference and EMF on the worksheet (formative check).
  2. Mini‑lecture (10'): Review key concepts and compare analogue vs digital voltmeter features using slides.
  3. Guided practice – analogue meter (15'): Demonstrate range selection, parallel connection, and needle reading; students repeat with a circuit and record values.
  4. Guided practice – digital meter (15'): Show manual and auto‑range, students measure the same circuit and note differences.
  5. Group activity (10'): Teams troubleshoot common errors (e.g., series connection, overload) using scenario cards.
  6. Exit ticket (5'): Write one precaution and one advantage for each meter type.
Conclusion:
Recap that selecting the correct range and connecting the voltmeter in parallel are essential for reliable measurements. Students submit their exit tickets and the completed worksheet. For homework, they will measure the EMF of a cell with both meters and compare the results in a short report.