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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Atomic and mass numbers.
|
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. |
Exposition on new concepts;
Probing questions; Brief discussion. |
text book
|
K.L.B.
BOOK II PP. 1-3 |
|
| 1 | 2 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
First twenty elements of the periodic table.
|
By the end of the
lesson, the learner
should be able to:
List the first twenty elements of the periodic table. Write chemical symbols of the first twenty elements of the periodic table. |
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. |
Periodic table.
|
K.L.B.
BOOK II PP. 1-3 |
|
| 1 | 3 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
First twenty elements of the periodic table.
|
By the end of the
lesson, the learner
should be able to:
List the first twenty elements of the periodic table. Write chemical symbols of the first twenty elements of the periodic table. |
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. |
Periodic table.
|
K.L.B.
BOOK II PP. 1-3 |
|
| 1 | 4-5 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Isotopes.
Electronic configuration. |
By the end of the
lesson, the learner
should be able to:
Define isotopes. Give examples of isotopes. Represent isotopes symbolically. Define an energy level. Describe electronic configuration in an atom. |
Exposition of definition and examples of isotopes.
Giving examples of isotopes. Exposition ? teacher exposes new concepts about electronic configuration. Written exercise. |
Periodic table.
|
K.L.B.
BOOK II P. 4 PP. 5-8 K.L.B. BOOK II P. 4 PP. 5-9 |
|
| 2 | 1 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Electronic configuration in diagrams.
|
By the end of the
lesson, the learner
should be able to:
Represent electronic configuration diagrammatically. |
Supervised practice;
Written exercise. |
text book
|
K.L.B.
BOOK II PP. 5-8 |
|
| 2 | 2 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Electronic configuration in diagrams.
|
By the end of the
lesson, the learner
should be able to:
Represent electronic configuration diagrammatically. |
Supervised practice;
Written exercise. |
text book
|
K.L.B.
BOOK II PP. 5-8 |
|
| 2 | 3 |
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
|
|
| 2 | 4-5 |
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
|
|
| 3 | 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
|
|
| 3 | 2 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Positive ions and ion formation.
|
By the end of the
lesson, the learner
should be able to:
To define an ion and a cation. |
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 14-15
|
|
| 3 | 3 |
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
|
|
| 3 | 4-5 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Positive ions representation.
Negative ions and ion formation. |
By the end of the
lesson, the learner
should be able to:
To represent formation of positive ions symbolically. To define an anion. To describe formation of negative ions symbolically. |
Diagrammatic representation of cations.
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 16
K.L.B. BOOK IIP 17 |
|
| 4 | 1 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Valencies of metals.
|
By the end of the
lesson, the learner
should be able to:
Recall valencies of 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
|
|
| 4 | 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
|
|
| 4 | 3 |
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
|
|
| 4 | 4-5 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Valencies of radicals.
Oxidation number. |
By the end of the
lesson, the learner
should be able to:
Define a radical. Recall the valencies of common radicals. Define oxidation number. Predict oxidation numbers from position of elements in the periodic table. |
Exposition ? teacher defines a radical, gives examples of radicals and exposes their valencies.
Students draw a table of radicals and their valencies. Q/A: Valencies. Expose oxidation numbers of common ions. Students complete a table of ions and their oxidation numbers. |
text book
The periodic table. |
K.L.B. BOOK IIP 18
K.L.B. BOOK IIvP 18 |
|
| 5 | 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
|
|
| 5 | 2 |
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
|
|
| 5 | 3 |
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
|
|
| 5 | 4-5 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
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 unequal valencies. |
Discuss formation of compounds such as MgCl2
Al (NO3)3 |
text book
|
K.L.B. BOOK IIPP 19-20
|
|
| 6 | 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
|
|
| 6 | 2 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Chemical equations.
|
By the end of the
lesson, the learner
should be able to:
To identify components of chemical equations. |
Review word equations;
Exposition of new concepts with probing questions; Brief discussion. |
text book
|
K.L.B. BOOK IIPP 21-23
|
|
| 6 | 3 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Balanced chemical equations.
|
By the end of the
lesson, the learner
should be able to:
To balance chemical equations correctly. |
Exposition;
Supervised practice. |
text book
|
K.L.B. BOOK IIPP 24-25
|
|
| 6 | 4-5 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Balanced chemical equations.
Balanced chemical equations.(contd) |
By the end of the
lesson, the learner
should be able to:
To balance chemical equations correctly. |
Exposition;
Supervised practice. Supervised practice; Written exercise. |
text book
|
K.L.B. BOOK IIPP 24-25
K.L.B. BOOK IIPP 25-8 |
|
| 7 | 1 |
CHEMICAL FAMILIES
|
Alkali metals.
Atomic and ionic radii of alkali metals
|
By the end of the
lesson, the learner
should be able to:
Identify alkali metals. State changes in atomic and ionic radii of alkali metals. |
Q/A to reviews elements of group I and their electronic configuration. Examine a table of elements, their symbols and atomic & ionic radii. Discussion & making deductions from the table. |
The periodic
|
K.L.B. BOOK IIPP 28-29
|
|
| 7 | 2 |
CHEMICAL FAMILIES
|
Alkali metals.
Atomic and ionic radii of alkali metals
|
By the end of the
lesson, the learner
should be able to:
Identify alkali metals. State changes in atomic and ionic radii of alkali metals. |
Q/A to reviews elements of group I and their electronic configuration. Examine a table of elements, their symbols and atomic & ionic radii. Discussion & making deductions from the table. |
The periodic
|
K.L.B. BOOK IIPP 28-29
|
|
| 7 | 3 |
CHEMICAL FAMILIES
|
Ionisation energy of alkali metals.
|
By the end of the
lesson, the learner
should be able to:
State changes in number of energy levels and ionisation energy of alkali metals. |
Examine a table of elements, number of energy levels and their ionization energy.
Discuss the trend deduced from the table. |
text book
|
K.L.B. BOOK II
|
|
| 7 | 4-5 |
CHEMICAL FAMILIES
|
Physical properties of alkali metals.
Chemical properties of alkali metals. |
By the end of the
lesson, the learner
should be able to:
State and explain trends in physical properties of alkali metals. To describe reaction of alkali metals with water. |
Examine a table showing comparative physical properties of Li, Na, and K.
Q/A: Teacher asks probing questions as students refer to the table for answers. Detailed discussion on physical properties of alkali metals. Q/A: Review reaction of metals with water. Writing down chemical equations for the reactions. Deduce and discuss the order of reactivity down the group. |
Chart ? comparative properties of Li, Na, K.
text book |
K.L.B. BOOK IIPP 30-31
K.L.B. BOOK IIP. 32 |
|
| 8 | 1 |
CHEMICAL FAMILIES
|
Reaction of alkali metals with chlorine gas.
|
By the end of the
lesson, the learner
should be able to:
To write balanced equations for reaction of alkali metals with chlorine gas. |
Teacher demonstration- reaction of sodium with chlorine in a fume chamber.
Q/A: Students to predict a similar reaction between potassium and chlorine. Word and balanced chemical equations for various reactions. |
Sodium, chlorine.
|
K.L.B. BOOK IIP. 33
|
|
| 8 | 1-2 |
CHEMICAL FAMILIES
|
Reaction of alkali metals with chlorine gas.
|
By the end of the
lesson, the learner
should be able to:
To write balanced equations for reaction of alkali metals with chlorine gas. |
Teacher demonstration- reaction of sodium with chlorine in a fume chamber.
Q/A: Students to predict a similar reaction between potassium and chlorine. Word and balanced chemical equations for various reactions. |
Sodium, chlorine.
|
K.L.B. BOOK IIP. 33
|
|
| 8 |
Midterm |
|||||||
| 8 | 4-5 |
CHEMICAL FAMILIES
|
Compounds of alkali metals.
Uses of alkali metals. |
By the end of the
lesson, the learner
should be able to:
Write chemical formulae for compounds of alkali metals. Explain formation of hydroxides, oxides and chlorides of alkali metals. State uses of alkali metals. |
Exercise: Completing a table of hydroxides, oxides and chlorides of alkali metals.
Discuss combination of ions of alkali metals with anions. Descriptive approach: Teacher elucidates uses of alkali metals. |
text book
|
K.L.B. BOOK II pp 33
K.L.B. BOOK II pp 34 |
|
| 9 | 1 |
CHEMICAL FAMILIES
|
Alkaline Earth metals
Atomic and ionic radii of alkaline earth metals.
|
By the end of the
lesson, the learner
should be able to:
Identify alkaline earth metals. State changes in atomic and ionic radii of alkaline earth metals. |
Q/A: Elements of group I and their electron configuration.
Examine a table of elements, their symbols and atomic & ionic radii. Make deductions from the table. |
Some alkaline earth metals.
|
K.L.B. BOOK II pp 34
|
|
| 9 | 2 |
CHEMICAL FAMILIES
|
Alkaline Earth metals
Atomic and ionic radii of alkaline earth metals.
|
By the end of the
lesson, the learner
should be able to:
Identify alkaline earth metals. State changes in atomic and ionic radii of alkaline earth metals. |
Q/A: Elements of group I and their electron configuration.
Examine a table of elements, their symbols and atomic & ionic radii. Make deductions from the table. |
Some alkaline earth metals.
|
K.L.B. BOOK II pp 34
|
|
| 9 | 3 |
CHEMICAL FAMILIES
|
Physical properties of alkaline earth metals.
|
By the end of the
lesson, the learner
should be able to:
State and explain trends in physical properties of alkaline earth metals. |
Examine a table showing comparative physical properties of Be, Mg, Ca.
Q/A: Teacher asks probing questions as students refer to the table for answers. Detailed discussion of physical properties of alkaline earth metals. |
Some alkaline earth metals.
|
K.L.B. BOOK II P. 35
|
|
| 9 | 4-5 |
CHEMICAL FAMILIES
|
Physical properties of alkaline earth metals.
Electrical properties of alkaline earth metals. |
By the end of the
lesson, the learner
should be able to:
State and explain trends in physical properties of alkaline earth metals. To describe electrical properties of alkaline earth metals. |
Examine a table showing comparative physical properties of Be, Mg, Ca.
Q/A: Teacher asks probing questions as students refer to the table for answers. Detailed discussion of physical properties of alkaline earth metals. Teacher demonstration: - To show alkaline metals are good conductors of electric charge. |
Some alkaline earth metals.
|
K.L.B. BOOK II P. 35
K.L.B. BOOK IIP. 37 |
|
| 10 | 1 |
CHEMICAL FAMILIES
|
Chemical properties of alkaline earth metals.
Reaction of alkaline earth metals with oxygen.
|
By the end of the
lesson, the learner
should be able to:
To describe reaction of alkaline earth metals with oxygen |
Q/A: Review reactions of Mg, Ca, with oxygen.
The corresponding word and then chemical equations are then written and their correctness verified by the teacher. |
text book
|
K.L.B. BOOK IIP. 38
|
|
| 10 | 2 |
CHEMICAL FAMILIES
|
Chemical properties of alkaline earth metals.
Reaction of alkaline earth metals with water.
|
By the end of the
lesson, the learner
should be able to:
To describe reaction of alkaline earth metals with water. |
Q/A: Review reaction of metals with water.
Writing down word and balanced chemical equations for the reactions. Deduce and discuss the order of reactivity down the group. |
Some alkaline earth metals.
|
K.L.B. BOOK IIP. 39
|
|
| 10 | 3 |
CHEMICAL FAMILIES
|
Chemical properties of alkaline earth metals.
Reaction of alkaline earth metals with water.
|
By the end of the
lesson, the learner
should be able to:
To describe reaction of alkaline earth metals with water. |
Q/A: Review reaction of metals with water.
Writing down word and balanced chemical equations for the reactions. Deduce and discuss the order of reactivity down the group. |
Some alkaline earth metals.
|
K.L.B. BOOK IIP. 39
|
|
| 10 | 4-5 |
CHEMICAL FAMILIES
|
Reaction of alkaline earth metals with chlorine gas.
Reaction of alkaline earth metals with dilute acids. |
By the end of the
lesson, the learner
should be able to:
To write balanced equations for reaction of alkaline earth metals with chlorine gas. To write balanced equations for reactions of alkaline earth metals with dilute acids. |
Teacher demonstration- Reaction of sodium with chlorine in a fume chamber.
Q/A: Students to predict a similar reaction between potassium and chlorine. Word and balanced chemical equations for various reactions. Supervised practice. Changing word to chemical equations. Supervised practice. |
Sodium, chlorine.
revision book |
K.L.B. BOOK II P. 41
K.L.B. BOOK II PP. 43 |
|
| 11 | 1 |
CHEMICAL FAMILIES
|
Chemical formulae of alkaline earth metals.
|
By the end of the
lesson, the learner
should be able to:
Write chemical formulae for compounds of alkaline earth metals. Explain formation of hydroxides, oxides and chlorides of alkaline earth metals. |
Exercise: Completing a table of hydroxides, oxides and chlorides of alkaline earth metals.
Discuss combination of ions of alkaline earth metals with anions. |
text book
|
K.L.B. BOOK II PP. 45-47
|
|
| 11 | 2 |
CHEMICAL FAMILIES
|
Chemical formulae of alkaline earth metals.
|
By the end of the
lesson, the learner
should be able to:
Write chemical formulae for compounds of alkaline earth metals. Explain formation of hydroxides, oxides and chlorides of alkaline earth metals. |
Exercise: Completing a table of hydroxides, oxides and chlorides of alkaline earth metals.
Discuss combination of ions of alkaline earth metals with anions. |
text book
|
K.L.B. BOOK II PP. 45-47
|
|
| 11 | 3 |
CHEMICAL FAMILIES
|
Uses of some alkaline earth metals and their compounds.
|
By the end of the
lesson, the learner
should be able to:
State uses of alkaline earth metals. |
Descriptive approach: Teacher elucidates uses of alkaline earth metals.
|
text book
|
K.L.B. BOOK II PP. 45-47
|
|
| 11 | 4-5 |
CHEMICAL FAMILIES
|
Halogens.
Physical properties of halogens.
Comparative physical properties of halogens. Chemical properties of halogens. |
By the end of the
lesson, the learner
should be able to:
Identify halogens in the periodic table. Give examples of halogens. Identify physical states of halogens. To state and explain the trends in physical properties of halogens. To describe laboratory preparation of chlorine gas. To describe reaction of halogens with metals. |
Teacher demonstration: - To examine electrical properties of iodine, solubility in water of chlorine.
Examine a comparative table of physical properties of halogens. Discuss the deductions made from the table. Teacher demonstration: - preparation of chlorine gas. Reaction of chlorine and iron wool. Reaction of bromine and iron wool. Reaction of iodine and iron wool. Observe the rate of these reactions; hence deduce order of their reactivity of halogens. |
Iodine crystals, electrical wire, a bulb.
text book Chlorine, iron wool, bromine. |
KLB BK II
P. 47 K.L.B. BOOK IIPP. 48-50 |
|
| 12 | 1 |
CHEMICAL FAMILIES
|
Equations of reaction of halogens with metals.
|
By the end of the
lesson, the learner
should be able to:
To write balanced chemical equations of reactions involving halogens. |
Re-write word equations as chemical equations then balance them.
Supervised practice. |
text book
|
K.L.B. BOOK II P. 50
|
|
| 12 | 2 |
CHEMICAL FAMILIES
|
Reaction of halogens with water.
|
By the end of the
lesson, the learner
should be able to:
To describe reaction of halogens with water and the results obtained. |
Bubbling chlorine gas through water.
Carry out litmus test for the water. Explain the observations. |
Chlorine gas, litmus papers.
|
K.L.B. BOOK II P. 51
|
|
| 12 | 3 |
CHEMICAL FAMILIES
|
Reaction of halogens with water.
|
By the end of the
lesson, the learner
should be able to:
To describe reaction of halogens with water and the results obtained. |
Bubbling chlorine gas through water.
Carry out litmus test for the water. Explain the observations. |
Chlorine gas, litmus papers.
|
K.L.B. BOOK II P. 51
|
|
| 12 | 4-5 |
CHEMICAL FAMILIES
|
Some uses of halogens and their compounds.
Noble Gases. Comparative physical properties of noble gases. Uses of noble gases. |
By the end of the
lesson, the learner
should be able to:
To state uses of halogens and their compounds. To describe physical properties of noble gases. To explain physical properties of noble gases. State uses of noble gases. |
Teacher elucidates uses of halogens and their compounds.
Make A comparative analysis of tabulated physical properties of noble gases. Teacher elucidates uses of noble gases. |
text book
|
K.L.B. BOOK II pp 52
K.L.B. BOOK IIPP. 52-53 |
|
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