| Lesson Plan |
| Grade: |
Date: 05/03/2026 |
| Subject: Physics |
| Lesson Topic: State the relative charges of protons, neutrons and electrons as +1, 0 and -1 respectively |
Learning Objective/s:
- Describe the relative charges of protons, neutrons, and electrons.
- Explain how the sum of these charges determines atomic neutrality.
- Identify common misconceptions about particle charges.
- Apply charge concepts to calculate the net charge of simple atoms.
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Materials Needed:
- Projector or interactive whiteboard
- Slide deck with particle‑charge table
- Printed worksheet with charge‑balance problems
- Physical model of an atom (foam balls or similar)
- Markers and chart paper
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Introduction:
Begin with a quick visual of an atom and ask students what they recall about the particles inside the nucleus. Link this to prior lessons on atomic structure and state the success criteria: students will correctly name each particle’s relative charge and explain neutrality.
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Lesson Structure:
- Do‑now (5’) – Students write the charge of protons, neutrons, and electrons on sticky notes; teacher reviews.
- Mini‑lecture (10’) – Present the relative charges using slides and the schematic diagram; emphasize the +1, 0, –1 values.
- Guided practice (10’) – Complete the charge table together and derive the neutrality equation.
- Misconception check (5’) – Quick poll on statements about neutrons and electron charge magnitude.
- Independent worksheet (10’) – Students calculate net charges for several atoms and correct any errors.
- Exit ticket (5’) – Write the charge of each particle and give one example of a neutral atom.
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Conclusion:
Recap the three relative charges and how they combine to give a neutral atom. Collect the exit tickets as a retrieval check and assign a short homework: complete a table of charge balances for three different elements.
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