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Chemistry
Form 4 2025
TERM III
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1 1
REVISION

Chemistry Paper 1 Revision
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
1 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
1 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
1 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
2 1
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
2 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
2 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
2 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
3 1
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
3 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
3 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
3 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
4 1
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
4 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
4 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
4 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
5

Pre kcse Examination

6 1
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
6 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
6 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
6 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
7 1
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
7 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
7 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
7 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
8 1
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
8 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
8 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
8 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
9 1
Chemistry Paper 1 Revision
Section A: Short Answer Questions
By the end of the lesson, the learner should be able to:
– attempt compulsory short-answer questions – recall and explain key chemistry concepts clearly – apply correct working in simple chemical calculations
Students attempt selected short-answer questions individually Peer-marking and teacher correction through discussion
Past Chemistry Paper 1 exams, Marking Schemes
Past Papers, Chalkboard, Chemistry Charts
KLB Chemistry Bk 1–4, KCSE Past Papers
9 2
Chemistry Paper 1 Revision
Integrated Short Answer Practice
By the end of the lesson, the learner should be able to:
– integrate knowledge from all Chemistry topics to solve mixed Paper 1 questions – practice time management under exam conditions – review answers using marking schemes and teacher feedback
Students attempt a timed set of Paper 1 questions (mock) Teacher leads whole-class marking and discussion of common errors
Full Past Paper 1, Answer Booklets, Marking Schemes
KCSE Past Papers, Teachers’ Guide
9 3-4
Chemistry Paper 2 Revision
Chemistry Paper 2 Revision
Chemistry Paper 3 Revision
Structured Questions: Analysis & Explanations
Structured Questions: Calculations & Reactions
Integrated Exam Practice
Quantitative Practical Skills
By the end of the lesson, the learner should be able to:
- attempt structured questions systematically - interpret and explain concepts from the Periodic Table, gases, and bonding - apply scientific reasoning to short-answer questions
- integrate knowledge across topics (organic, industrial, acids/bases, gases) - apply time management in answering compulsory Paper 2 questions - self-assess answers against marking scheme
Learners attempt selected structured questions Teacher guides marking and discusses common errors Class shares strategies for improving explanations
Learners sit for a timed mock (selected Paper 2 questions) Peer marking guided by marking scheme Teacher highlights answering techniques and improvement areas
Past Chemistry Paper 2 exams, Marking Schemes, Whiteboard
Calculators, Revision Exercises, Charts
Past Papers, Marking Schemes, Exam Answer Sheets
Laboratory apparatus, Past Papers
KLB Chem Bk 2–4, KCSE Past Papers
KLB Chem Bk 1–4, KCSE Past Papers
9 5
Chemistry Paper 3 Revision
Qualitative Practical Skills
By the end of the lesson, the learner should be able to:
- make accurate observations during experiments - record results clearly and systematically - draw correct inferences from experimental outcomes
Teacher demonstrates step-by-step approach to qualitative tasks Learners carry out tests in groups Group review of observations vs. inferences
Laboratory apparatus, Reagents, Past Papers
KLB Chem Bk 1–4, KCSE Past Papers

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