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SCHEME OF WORK
Chemistry
Form 2 2025
TERM II
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1

OPENING AND REPORTING
1 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Atomic and mass numbers.
First twenty elements of the periodic table.
By the end of the lesson, the learner should be able to:


Name the subatomic particles in an atom.
Define atomic number and mass number of an atom.
Represent atomic and mass numbers symbolically.

List the first twenty elements of the periodic table.
Write chemical symbols of the first twenty elements of the periodic table.
Exposition on new concepts;
Probing questions;
Brief discussion.
Expository approach: referring to the periodic table, teacher exposes the first twenty elements.
Writing down a list of first twenty elements of the periodic table.
text book
Periodic table.
K.L.B.
BOOK II

PP. 1-3
2 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Isotopes.
By the end of the lesson, the learner should be able to:
Define isotopes.
Give examples of isotopes.
Exposition of definition and examples of isotopes.
Giving examples of isotopes.
Periodic table.
K.L.B.
BOOK II
P. 4





PP. 5-8
2 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Isotopes.
By the end of the lesson, the learner should be able to:
Define isotopes.
Give examples of isotopes.
Exposition of definition and examples of isotopes.
Giving examples of isotopes.
Periodic table.
K.L.B.
BOOK II
P. 4





PP. 5-8
2 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Electronic configuration.
Electronic configuration in diagrams.
By the end of the lesson, the learner should be able to:
Represent isotopes symbolically.
Define an energy level.
Describe electronic configuration in an atom.
Represent electronic configuration diagrammatically.
Exposition ? teacher exposes new concepts about electronic configuration.
Written exercise.
Supervised practice;
Written exercise.
Periodic table.

text book
K.L.B.
BOOK II
P. 4





PP. 5-9
K.L.B.
BOOK II
PP. 5-8
3 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Periods of the periodic table.
By the end of the lesson, the learner should be able to:
Identify elements of the same period.
Exposition ? Definition of a period.
Q/A: Examples of elements of the same period.
Periodic table.
K.L.B. BOOK IIP. 9
3 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Periods of the periodic table.
By the end of the lesson, the learner should be able to:
Identify elements of the same period.
Exposition ? Definition of a period.
Q/A: Examples of elements of the same period.
Periodic table.
K.L.B. BOOK IIP. 9
3 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Groups of the periodic table.
By the end of the lesson, the learner should be able to:
Identify elements of the same period.
Exposition ? definition of a group.
Q/A: examples of elements of the same group.
Periodic table.
K.L.B. BOOK IIP. 9
4 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
R.M.M. and isotopes.
By the end of the lesson, the learner should be able to:
Calculate R.M.M. from isotopic composition.
Supervised practice involving calculation of RMM from isotopic composition.
text book
K.L.B. BOOK IIPP. 11-13
4 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
R.M.M. and isotopes.
By the end of the lesson, the learner should be able to:
Calculate R.M.M. from isotopic composition.
Supervised practice involving calculation of RMM from isotopic composition.
text book
K.L.B. BOOK IIPP. 11-13
4 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
R.M.M. and isotopes.
Positive ions and ion formation.
By the end of the lesson, the learner should be able to:
Calculate R.M.M. from isotopic composition.

To define an ion and a cation.
Supervised practice involving calculation of RMM from isotopic composition.

Teacher gives examples of stable atoms.
Guided discovery that metals need to lose one, two or three electrons to attain stability.
Examples of positive ions.
text book
K.L.B. BOOK IIPP. 11-13
K.L.B. BOOK IIPP 14-15
5 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Positive ions representation.
By the end of the lesson, the learner should be able to:
To represent formation of positive ions symbolically.
Diagrammatic representation of cations.
Chart  ion model.
K.L.B. BOOK IIP 16
5 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Positive ions representation.
By the end of the lesson, the learner should be able to:
To represent formation of positive ions symbolically.
Diagrammatic representation of cations.
Chart  ion model.
K.L.B. BOOK IIP 16
5 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Positive ions representation.
By the end of the lesson, the learner should be able to:
To represent formation of positive ions symbolically.
Diagrammatic representation of cations.
Chart  ion model.
K.L.B. BOOK IIP 16
6 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Negative ions and ion formation.
By the end of the lesson, the learner should be able to:
To define an anion.
To describe formation of negative ions symbolically.
Teacher gives examples of stable atoms.
Guided discovery of formation of negative ions.
Diagrammatic representation of anions.
Chart  ion model.
K.L.B. BOOK IIP 17
6 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Negative ions and ion formation.
By the end of the lesson, the learner should be able to:
To define an anion.
To describe formation of negative ions symbolically.
Teacher gives examples of stable atoms.
Guided discovery of formation of negative ions.
Diagrammatic representation of anions.
Chart  ion model.
K.L.B. BOOK IIP 17
6 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Negative ions and ion formation.
Valencies of metals.
By the end of the lesson, the learner should be able to:
To define an anion.
To describe formation of negative ions symbolically.
Recall valencies of metals among the first twenty elements in the periodic table.
Teacher gives examples of stable atoms.
Guided discovery of formation of negative ions.
Diagrammatic representation of anions.

Q/A to review previous lesson;
Exposition;
Guided discovery.
Chart  ion model.
Periodic table.
K.L.B. BOOK IIP 17
7 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Valencie of non-metals.
By the end of the lesson, the learner should be able to:
Recall valencies of non-metals among the first twenty elements in the periodic table.
Q/A to review previous lesson;
Exposition;
Guided discovery.
Periodic table.
K.L.B. BOOK IIP 17
7 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Valencie of non-metals.
By the end of the lesson, the learner should be able to:
Recall valencies of non-metals among the first twenty elements in the periodic table.
Q/A to review previous lesson;
Exposition;
Guided discovery.
Periodic table.
K.L.B. BOOK IIP 17
7 3
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Valencies of radicals.
By the end of the lesson, the learner should be able to:
Define a radical.
Recall the valencies of common radicals.
Exposition ? teacher defines a radical, gives examples of radicals and exposes their valencies.
Students draw a table of radicals and their valencies.
text book
K.L.B. BOOK IIP 18
7 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Valencies of radicals.
By the end of the lesson, the learner should be able to:
Define a radical.
Recall the valencies of common radicals.
Exposition ? teacher defines a radical, gives examples of radicals and exposes their valencies.
Students draw a table of radicals and their valencies.
text book
K.L.B. BOOK IIP 18
8

MID-TERM EXAM AND HALF-TERM

9 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Oxidation number.
By the end of the lesson, the learner should be able to:
Define oxidation number.
Predict oxidation numbers from position of elements in the periodic table.
Q/A: Valencies.
Expose oxidation numbers of common ions.
Students complete a table of ions and their oxidation numbers.
The periodic table.
K.L.B. BOOK IIvP 18
9 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Oxidation number.
By the end of the lesson, the learner should be able to:
Define oxidation number.
Predict oxidation numbers from position of elements in the periodic table.
Q/A: Valencies.
Expose oxidation numbers of common ions.
Students complete a table of ions and their oxidation numbers.
The periodic table.
K.L.B. BOOK IIvP 18
9 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Oxidation number.
By the end of the lesson, the learner should be able to:
Define oxidation number.
Predict oxidation numbers from position of elements in the periodic table.
Q/A: Valencies.
Expose oxidation numbers of common ions.
Students complete a table of ions and their oxidation numbers.
The periodic table.
K.L.B. BOOK IIvP 18
10 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Electronic configuration, ion formed, valency and oxidation number
By the end of the lesson, the learner should be able to:
Relate electronic configuration, ion formed, valency and oxidation number of different elements.
Written exercise;
Exercise review.
text book
K.L.B. BOOK IIP 18
10 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Chemical formulae of compounds. - Elements of equal valencies.
By the end of the lesson, the learner should be able to:
To derive the formulae of some compounds involving elements of equal valencies.
Discuss formation of compounds such as NaCl, MgO.
text book
K.L.B. BOOK IIPP 19-20
10 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Chemical formulae of compounds. - Elements of equal valencies.
Chemical formulae of compounds. -Elements of unequal valencies.
By the end of the lesson, the learner should be able to:
To derive the formulae of some compounds involving elements of equal valencies.
To derive the formulae of some compounds involving elements of unequal valencies.
Discuss formation of compounds such as NaCl, MgO.
Discuss formation of compounds such as MgCl2
Al (NO3)3
text book
K.L.B. BOOK IIPP 19-20
11 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Chemical formulae of compounds. -Elements of variable valencies.
By the end of the lesson, the learner should be able to:
To derive the formulae of some compounds involving elements of variable valencies.
Discuss formation of compounds such as
-Copper (I) Oxide.
-Copper (II) Oxide.
-Iron (II) Sulphate.
-Iron (III) Sulphate.
text book
K.L.B. BOOK IIP 20
11 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Chemical formulae of compounds. -Elements of variable valencies.
By the end of the lesson, the learner should be able to:
To derive the formulae of some compounds involving elements of variable valencies.
Discuss formation of compounds such as
-Copper (I) Oxide.
-Copper (II) Oxide.
-Iron (II) Sulphate.
-Iron (III) Sulphate.
text book
K.L.B. BOOK IIP 20
11 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Chemical equations.
Balanced chemical equations.
By the end of the lesson, the learner should be able to:
To identify components of chemical equations.

To balance chemical equations correctly.
Review word equations;
Exposition of new concepts with probing questions;
Brief discussion.
Exposition;
Supervised practice.
text book
K.L.B. BOOK IIPP 21-23
K.L.B. BOOK IIPP 24-25
12 1
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Balanced chemical equations.(contd)
By the end of the lesson, the learner should be able to:
To balance chemical equations correctly.
Supervised practice;
Written exercise.
text book
K.L.B. BOOK IIPP 25-8
12 2
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Balanced chemical equations.(contd)
By the end of the lesson, the learner should be able to:
To balance chemical equations correctly.
Supervised practice;
Written exercise.
text book
K.L.B. BOOK IIPP 25-8
12 3-4
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
Balanced chemical equations.(contd)
By the end of the lesson, the learner should be able to:
To balance chemical equations correctly.
Supervised practice;
Written exercise.
text book
K.L.B. BOOK IIPP 25-8
14

END TERM EXAMS

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