Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Chemistry
Lesson Topic: State the formulae of the elements and compounds named in the subject content
Learning Objective/s:
  • State the correct chemical formulae for elements, simple binary compounds, common acids, bases and salts.
  • Distinguish between ionic and covalent formulas using charge‑balance and bonding rules.
  • Apply formula‑writing rules to unfamiliar compounds in short written tasks.
Materials Needed:
  • Projector or interactive whiteboard
  • Chemistry textbook / IGCSE syllabus handout
  • Printed worksheets with formula tables
  • Periodic table posters
  • Whiteboard and markers
  • Answer key for teacher
 Introduction:
Begin with a quick quiz on element symbols to activate prior knowledge. Explain that today’s focus is converting names of substances into correct chemical formulae, a key skill for the IGCSE exam. Outline the success criteria: students will accurately write formulas for elements, binary compounds, acids, bases and salts.
Lesson Structure:
  1. Do‑now (5’) – students write symbols and atomic numbers for a set of elements.
  2. Mini‑lecture (10’) – review ion charges, ionic vs covalent bonding, and formula rules using the projector.
  3. Guided practice (15’) – teacher models writing formulas for examples (NaCl, CO₂, H₂SO₄) while students follow on worksheet.
  4. Collaborative activity (15’) – groups complete a worksheet covering elements, binary compounds, acids, bases and salts; teacher circulates.
  5. Whole‑class check (10’) – groups share answers, teacher clarifies common errors.
  6. Independent practice (10’) – students attempt the practice list (5 compounds) and record answers.
  7. Exit ticket (5’) – each student writes one formula for a compound not covered and the rule used.
Conclusion:
Summarise the charge‑balance and bonding principles that guide formula writing. Collect exit tickets as a quick retrieval check. For homework, assign a set of eight named compounds for students to write the correct formulas.