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Chemistry
Form 3 2025
TERM II
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1 5
ORGANIC CHEMISTRY (I)
Hydrocarbons.
Alkanes.
By the end of the lesson, the learner should be able to:
To define organic Chemistry.
To define a hydrocarbon.
To identify groups of hydrocarbons.
To describe the carbon atom.
Discuss composition of the carbon atom; hence deduce number of valence electrons.
Exposition of new terms.
student book
Chart of biomass digester.
K.L.B. BK III
P. 92
Longhorn
Book III
P 135
2 1
ORGANIC CHEMISTRY (I)
Naming Alkanes.
By the end of the lesson, the learner should be able to:
To identify various alkanes.
To define a homologous series.
Discussion and exposition of new concepts.
student book
K.L.B. BK III
PP. 94-98
Longhorn
Book III
PP 136-139
2 2
ORGANIC CHEMISTRY (I)
Members of Alkane series.
By the end of the lesson, the learner should be able to:
To name members of alkane series and identify their characteristics.
To draw the structures of alkane series.
Discussion and exposition of new concepts.
Chart- structure of alkanes.
K.L.B. BK III
PP. 97-99

Longhorn Book III
PP 137-9
2 3
ORGANIC CHEMISTRY (I)
Isomerism in alkanes.
Laboratory preparation of a given alkane.
By the end of the lesson, the learner should be able to:
To draw and name isomers of simple hydrocarbons.
Discussion and exposition of new concepts.
Models.
Sodium ethanoate, sodalime,
Pestle and mortar.
K.L.B. BK III
PP. 101-102 Longhorn Book III
PP 141-2
2 4-5
ORGANIC CHEMISTRY (I)
Trend in physical properties of alkanes.
Chemical properties of alkanes.
Substitution reactions involving alkanes. Uses of alkanes.
By the end of the lesson, the learner should be able to:
To describe the trend in physical properties of alkanes.
Describe chemical properties of alkanes.
Study a table of comparative properties of alkanes.
Make deductions from the table.
Discussion
Examples of balanced equations.
student book
K.L.B. BK III
P. 105

Longhorn
Book III
PP 148-9

K.L.B. BK III
P. 107
Longhorn
Book III
PP 148-9
3 1
ORGANIC CHEMISTRY (I)
Alkenes. Molecular formulae of alkenes.
By the end of the lesson, the learner should be able to:
To write molecular formulae of alkenes.
Examine table of members of alkenes.
To identify members of alkene series.
student book
K.L.B. BK III
PP 153-4
3 2
ORGANIC CHEMISTRY (I)
Naming alkenes.
Alkene isomerism.
By the end of the lesson, the learner should be able to:
To name various alkenes.
Q/Q: Nomenclature in alkenes.
Compare alkenes; hence deduce names of various alkenes.
student book
K.L.B. BK III
PP. 110-113
Longhorn
Book III
PP 154-6
3 3
ORGANIC CHEMISTRY (I)
Preparing ethene in the lab.
By the end of the lesson, the learner should be able to:
To describe lab preparation of ethene.
Teacher demonstration: - Carry out tests on ethene as students note down the observations in a table.
chart

K.L.B. BK III
P 162
3 4-5
ORGANIC CHEMISTRY (I)
Physical properties of ethene.
Chemical properties of ethene.
Alkenes and oxidizing agents.
By the end of the lesson, the learner should be able to:
To describe physical properties of ethene and other alkenes.
To explain halogenation and hydrogenation reactions.
To discuss physical properties of ethene and other alkenes.


Discussion and drawing structures.
student book
charts
K.L.B. BK III
PP. 116-117
Longhorn Book III
PP 126-129
165-6

KLB BK III
PP. 118-119
Longhorn
Book III
PP 166-8
4 1
ORGANIC CHEMISTRY (I)
Uses of alkenes & Topic review.
By the end of the lesson, the learner should be able to:
To list down uses of alkenes.
Teacher elucidates uses of alkenes.

Assignment.
charts
K.L.B. BK III
P. 121 Longhorn Book
PP 170-1
4 2
ORGANIC CHEMISTRY (I)
Alkynes. Nomenclature.
By the end of the lesson, the learner should be able to:
To identify various alkynes.
To name and draw structures of alkynes.
Discuss a table of members of alkynes.
Review naming of alkanes and alkene and compare this with naming of alkynes.
charts
K.L.B. BK III
P. 122-123
Longhorn
Book III
PP 126-129 171-5
4

CAT 1

5 1
ORGANIC CHEMISTRY (I)
Isomerism in alkynes.
By the end of the lesson, the learner should be able to:
To draw structure showing positional and branching isomerism.
Discussion and drawing structures.
charts
K.L.B. BK III
PP. 124-125
Longhorn
Book III
PP 176-8
5 2
ORGANIC CHEMISTRY (I)
Physical properties of ethyne.
By the end of the lesson, the learner should be able to:
To list down physical properties of ethyne.
Teacher demonstration: Preparation of ethyne.
Deduce properties of other alkynes.
charts
K.L.B. BK III
PP. 125-126
Longhorn
Book III
PP 197-80
5 3
ORGANIC CHEMISTRY (I)
Chemical properties of ethyne.
Tests for alkynes. Uses of alkynes.
By the end of the lesson, the learner should be able to:
To describe combustion, halogenation and hydrogenation processes.
Discussion and writing of equations.
charts
K.L.B. BK III
PP. 127-129
Longhorn Book III
PP 180-184
5 4-5
CHLORINE & ITS COMPOUNDS
Lab. preparation of chlorine gas.
Physical properties of chlorine.
Chemical properties of chlorine ? reaction with water.
By the end of the lesson, the learner should be able to:


Describe laboratory preparation of chlorine gas.

State physical properties of chlorine.


Teacher demonstration ? gas prep. tests on the gas.
Q/A: Relate the properties to the method of collection of the gas.
Write equations for the reaction leading to formation of chlorine.

Conc. HCl, Manganese (IV) oxide.
charts
Moist blue litmus papers.

K.L.B.BK III
P. 219
Longhorn
Book III
PP 298-9

K.L.B.BK III
P. 220.
Longhorn
Book III
P 301
6 1
CHLORINE & ITS COMPOUNDS
Chemical properties of chlorine - Reaction with metals - Reaction with non-metals.
By the end of the lesson, the learner should be able to:
To investigate and explain reaction of chlorine with metals / non-metals.
Teacher demonstration:
Discussion.
Writing chemical equations.
textbook
K.L.B.BK III
PP.
224 -225
Longhorn
Book III
PP 303-5
6 2
CHLORINE & ITS COMPOUNDS
Chemical properties of chlorine - Reaction with metals - Reaction with non-metals.
By the end of the lesson, the learner should be able to:
To investigate and explain reaction of chlorine with metals / non-metals.
Teacher demonstration:
Discussion.
Writing chemical equations.
textbook
K.L.B.BK III
PP.
224 -225
Longhorn
Book III
PP 303-5
6 3
CHLORINE & ITS COMPOUNDS
- Oxidizing properties of chlorine.
By the end of the lesson, the learner should be able to:
To investigate and explain reaction of chlorine with reducing a gents.
Group experiments.
Discuss and explain observations made.
Write corresponding chemical equations.
Expt. Worksheets.
K.L.B. BK III
PP. 226 -227
Longhorn Book
PP 307-8
6 4-5
CHLORINE & ITS COMPOUNDS
Chlorine and alkalis.
Test for chlorides.
By the end of the lesson, the learner should be able to:
To investigate and explain reaction of chlorine with alkalis.
To carry out tests for chlorides.
Teacher demonstration: Bubbling chlorine with dilute cold / hot NaOH solution.
Make observations and account for them.

Class expts.
Discuss observations, results.
Write chemical equations for the reactions.
Cold / hot NaOH solutions.
Expt. Worksheets.
Zinc chloride, litmus paper, conc. Sulphuric acid.
K.L.B.BK III
P. 228
Longhorn Book III
PP 313-4

K.L.B.BK III
P. 230
Longhorn Book III
PP 318-319
7 1
CHLORINE & ITS COMPOUNDS
Uses of chlorine gas.
By the end of the lesson, the learner should be able to:
To state uses of chlorine.
Teacher elucidates uses of chlorine.
K.L.B.BK III
P. 231
Longhorn Book III
PP 320
7 2
CHLORINE & ITS COMPOUNDS
Hydrogen chloride gas. Lab. prep. Physical properties.
By the end of the lesson, the learner should be able to:
To describe Lab. prep of hydrogen chloride gas.
To investigate and state physical properties of hydrogen chloride gas.
Teacher demonstration.
Carry out tests on the gas and deduce the properties of the gas.
Sodium chloride crystals, conc H2SO4

K.L.B.BK III
P. 232
Longhorn
Book III
PP 323-4
7 3
CHLORINE & ITS COMPOUNDS
Aqueous hydrogen chloride.
By the end of the lesson, the learner should be able to:
To prepare aqueous hydrogen chloride.
Class experiment leading to deduction of chemical properties of hydrogen chloride gas.
Distilled water.

K.L.B.BK III
P. 234
7 4
CHLORINE & ITS COMPOUNDS
Further chemical properties of hydrogen chloride gas.
By the end of the lesson, the learner should be able to:
To determine chemical properties of hydrogen chloride gas.
To carry out confirmatory test for hydrogen chloride gas.
Class experiment leading to deduction of further chemical properties of hydrogen chloride gas / confirmatory test for hydrogen chloride gas.
Ammonia solution.
K.L.B. BK III
PP.
235 -223
Longhorn
Book III
PP 327-331
7 4-5
CHLORINE & ITS COMPOUNDS
Further chemical properties of hydrogen chloride gas.
Large-scale production of hydrochloric acid.
By the end of the lesson, the learner should be able to:
To determine chemical properties of hydrogen chloride gas.
To carry out confirmatory test for hydrogen chloride gas.

Identify raw materials for manufacture of hydrochloric acid in large scale.
Describe the manufacturing process.
Class experiment leading to deduction of further chemical properties of hydrogen chloride gas / confirmatory test for hydrogen chloride gas.

Discussion and giving relevant equations.
Ammonia solution.
charts
K.L.B. BK III
PP.
235 -223
Longhorn
Book III
PP 327-331

K.L.B.BK III
P. 237
Longhorn Book III
P 330
8 1
CHLORINE & ITS COMPOUNDS
Uses of hydrochloric acid.
By the end of the lesson, the learner should be able to:
To state uses of hydrochloric acid.
Brief discussion.
charts
K.L.B. BK III
P. 237
Longhorn Book III
P 331-3
8 2
CHLORINE & ITS COMPOUNDS
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Effects of hydrochloric acid on the environment.
Alkanols (Alcohols).
By the end of the lesson, the learner should be able to:
To explain effects of hydrochloric acid on the environment.
Discussion and explanation.
Assignment.
charts
student book
K.L.B. BK III
P 238.
Longhorn Book III
PP 334-8
8 3
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Nomenclature of alkanols.
By the end of the lesson, the learner should be able to:
Name and draw the structure of simple alkanols.
Guided discovery of naming system for alkanols.
Draw and name structures of alkanols.
student book
K.L.B. BK IV
Pages 206-8
8 4-5
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Isomerism in alkanols.
Preparation of ethanol in the lab.
By the end of the lesson, the learner should be able to:
Describe positional and chain isomerism in alkanols.
Explain formation of primary and secondary alkanols.
Describe preparation of ethanol in the laboratory.
Q/A: review the terms positional and chain isomerism.
Brief discussion on isomerism.
Oral exercise: naming given organic compounds.
Written exercise: writing structural formulae for isomers of organic compounds of a given molecular formula.

Group experiments / teacher demonstration.

Discuss the fermentation process.
student book
Calcium hydroxide solution, sugar solution, yeast.

K.L.B. BK IV
Pages 208-10
K.L.B. BK IV
Pages 210-11
9

HALF TERM BREAK

10

EXAM

11 1
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Physical properties of alkanols.
By the end of the lesson, the learner should be able to:
Explain the physical properties of alkanols.
Comparative evaluation of physical properties of alkanols.
Q/A & discussion on variation in physical properties of alkanols.
student book
K.L.B. BK IV
Page 212
11 2
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Chemical properties of alkanols.
Esters and esterification.
By the end of the lesson, the learner should be able to:
Describe some chemical reactions of alkanols.
Group experiments/ teacher demonstration to investigate combustion of ethanol and its reaction with metals.
Write corresponding chemical equations.
student book
K.L.B. BK IV
Pages 213-5
11 3
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Oxidation of ethanol. Uses of alkanols.
By the end of the lesson, the learner should be able to:
Explain oxidation of ethanol by an oxidizing agent.
State uses of alkanols.
Explain the effects of alcohol on human health
Q/A: review redox reactions, oxidizing and reducing agents.
Brief discussion: oxidation of ethanol using potassium (VII) manganate or potassium (VI) dichromate.
Write corresponding chemical equations.
Open discussion.

student book
K.L.B. BK IV
Pages 216-8
11 4-5
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Oxidation of ethanol. Uses of alkanols.
Alkanoic (Carboxylic Acids).
By the end of the lesson, the learner should be able to:
Explain oxidation of ethanol by an oxidizing agent.
State uses of alkanols.
Explain the effects of alcohol on human health
Identify the functional group of alkanoic (carboxylic) acids.
Explain formation of alkanoic acid molecule.
Q/A: review redox reactions, oxidizing and reducing agents.
Brief discussion: oxidation of ethanol using potassium (VII) manganate or potassium (VI) dichromate.
Write corresponding chemical equations.
Open discussion.


Q/A: review functional group of alkanols.

Brief discussion.
student book
K.L.B. BK IV
Pages 216-8
K.L.B. BK IV
Page 219
12 1
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Nomenclature of alkanoic acids.
By the end of the lesson, the learner should be able to:
Name and draw the structure of simple alkanoic acids.

Guided discovery of the naming system for alkanoic acids.
Chart: homologous series of alkanoic acids.
K.L.B. BK IV
Pages 219-221
12 2
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Lab preparation of ethanoic acid.
By the end of the lesson, the learner should be able to:
Describe laboratory preparation of ethanoic acid.
Teacher demonstration: prepare ethanoic acid in the lab.

Brief discussion on preparation of ethanoic acid.
Concentrated H2SO4, potassium manganate
(VII) Crystals, water bath.
K.L.B. BK IV
Pages 221-223
12 3
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Physical properties of alkanoic acids.
By the end of the lesson, the learner should be able to:
Explain some physical properties of alkanoic acids.
Compare physical properties of some alkanoic acids.
Discuss the difference in physical properties among alkanoic acids.
student book
K.L.B. BK IV
Pages 223-4
12 4-5
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Chemical properties of alkanoic acids.
Chemical properties & Uses of alkanoic acids.
Soap preparation in the lab.
By the end of the lesson, the learner should be able to:
Explain some chemical properties of alkanoic acids.
Describe soap preparation in the lab.
Group experiment: investigate some chemical properties of ethanoic acid.
Carry out tests and record observations in a table.
Group experiments,
Answer questions based on the experiments already carried out.



Ethanoic acid, universal indicator, sodium carbonate, magnesium strip, ethanol, conc. H2SO4 and sodium hydroxide.
student book
K.L.B. BK IV
Pages 224-5
K.L.B. BK IV
Pages 227-230
13 1
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Cleaning action of soap.
By the end of the lesson, the learner should be able to:
Describe the nature of a soap molecule.
Explain the mode of action in cleaning.
Expository and descriptive approaches.
Answer oral questions.
student book
K.L.B. BK IV
Pages 230-232
13 2
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Effects of hard / soft water on soap.
Soapless detergents.
By the end of the lesson, the learner should be able to:
Explain the effects of hard/ soft water on soap.
Group experiments: form soap lather in different solutions.

Deduce the effects of hard/ soft water on soap.
Distilled water, tap water, rainwater, sodium chloride solution.
Calcium nitrate, Zinc Sulphate, etc.
student book
K.L.B. BK IV
Pages 232-235
13 3
ORGANIC CHEMISTRY II (ALKANES & ALKANOIC ACIDS)
Polymers and polymerization.
By the end of the lesson, the learner should be able to:
Explain the concepts additional and condensation polymerization as methods of making synthetic polymers.
Identify some products of polymerization.
State merits and demerits of synthetic polymers over natural materials.


Teacher exposes and explains new concepts.

Detailed discussion.

Assignment.
student book
K.L.B. BK IV
Pages 238-242
13

CAT 2

14

Preparation of reports and closing


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