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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 2 | 1-2 |
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
|
|
| 2 | 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
|
|
| 2 | 4 |
CHEMICAL FAMILIES
|
Physical 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. |
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. |
Chart ? comparative properties of Li, Na, K.
|
K.L.B. BOOK IIPP 30-31
|
|
| 3 | 1-2 |
CHEMICAL FAMILIES
|
Chemical properties of alkali metals.
|
By the end of the
lesson, the learner
should be able to:
To describe reaction of alkali metals with water. |
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. |
text book
|
K.L.B. BOOK IIP. 32
|
|
| 3 | 3 |
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
|
|
| 3 | 4 |
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
|
|
| 4 | 1-2 |
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 |
|
| 4 | 3 |
CHEMICAL FAMILIES
|
Uses of alkali metals.
|
By the end of the
lesson, the learner
should be able to:
State uses of alkali metals. |
Descriptive approach: Teacher elucidates uses of alkali metals.
|
text book
|
K.L.B. BOOK II pp 34
|
|
| 4 | 4 |
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
|
|
| 5 | 1-2 |
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
|
|
| 5 | 3 |
CHEMICAL FAMILIES
|
Electrical properties of alkaline earth metals.
|
By the end of the
lesson, the learner
should be able to:
To describe electrical properties of alkaline earth metals. |
Teacher demonstration: -
To show alkaline metals are good conductors of electric charge. |
Alkaline earth metals.
|
K.L.B. BOOK IIP. 37
|
|
| 5 | 4 |
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
|
|
| 6 | 1-2 |
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
|
|
| 6 | 3 |
CHEMICAL FAMILIES
|
Reaction of alkaline earth metals with chlorine gas.
|
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. |
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. |
Sodium, chlorine.
|
K.L.B. BOOK II P. 41
|
|
| 6 | 4 |
CHEMICAL FAMILIES
|
Reaction of alkaline earth metals with chlorine gas.
|
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. |
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. |
Sodium, chlorine.
|
K.L.B. BOOK II P. 41
|
|
| 7 | 1-2 |
CHEMICAL FAMILIES
|
Reaction of alkaline earth metals with dilute acids.
Chemical formulae of alkaline earth metals. |
By the end of the
lesson, the learner
should be able to:
To write balanced equations for reactions of alkaline earth metals with dilute acids. Write chemical formulae for compounds of alkaline earth metals. Explain formation of hydroxides, oxides and chlorides of alkaline earth metals. |
Changing word to chemical equations.
Supervised practice. Exercise: Completing a table of hydroxides, oxides and chlorides of alkaline earth metals. Discuss combination of ions of alkaline earth metals with anions. |
revision book
text book |
K.L.B. BOOK II PP. 43
K.L.B. BOOK II PP. 45-47 |
|
| 7 | 3 |
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
|
|
| 7 | 4 |
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
|
|
| 8 | 1-2 |
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 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.
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 |
|
| 8 | 3 |
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
|
|
| 8 | 3-4 |
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
|
|
| 9 |
HALF TERM BREAK |
|||||||
| 10 | 1-2 |
CHEMICAL FAMILIES
|
Reaction of halogens with water.
Some uses of halogens and their compounds. |
By the end of the
lesson, the learner
should be able to:
To describe reaction of halogens with water and the results obtained. To state uses of halogens and their compounds. |
Bubbling chlorine gas through water.
Carry out litmus test for the water. Explain the observations. Teacher elucidates uses of halogens and their compounds. |
Chlorine gas, litmus papers.
text book |
K.L.B. BOOK II P. 51
K.L.B. BOOK II pp 52 |
|
| 10 | 3 |
CHEMICAL FAMILIES
|
Noble Gases.
Comparative physical properties of noble gases.
|
By the end of the
lesson, the learner
should be able to:
To describe physical properties of noble gases. To explain physical properties of noble gases. |
Make A comparative analysis of tabulated physical properties of noble gases.
|
text book
|
K.L.B. BOOK IIPP. 52-53
|
|
| 10 | 4 |
CHEMICAL FAMILIES
STRUCTURE & BONDING |
Uses of noble gases.
Chemical bonds. Ionic bond. |
By the end of the
lesson, the learner
should be able to:
State uses of noble gases. |
Teacher elucidates uses of noble gases.
|
text book
|
K.L.B. BOOK IIP. 54
|
|
| 11 | 1-2 |
STRUCTURE & BONDING
|
Ionic bond representation.
Grant ionic structures. Physical properties of ionic compounds. |
By the end of the
lesson, the learner
should be able to:
Use dot and cross diagrams to represent ionic bonding. Describe physical properties of ionic compounds. Explain the differences in the physical properties of ionic compounds. |
Drawing diagrams of ionic bonds.
Analyse tabulated comparative physical properties of ionic compounds. Teacher asks probing questions. |
Chart- dot and cross diagrams.
Models for bonding. Giant sodium chloride model. text book |
K.L.B. BOOK II P. 58
K.L.B. BOOK IIPP 58-59 |
|
| 11 | 3 |
STRUCTURE & BONDING
|
Covalent bond.
Co-ordinate bond. |
By the end of the
lesson, the learner
should be able to:
Explain the formation of covalent bond Use dot and cross diagrams to represent covalent bond. |
Exposition: Shared pair of electrons in a hydrogen molecule, H2O, NH3, Cl2, and CO2.
Drawing of dot-and-cross diagrams of covalent bonds. |
text book
|
K.L.B. BOOK II PP 60-63
|
|
| 11 | 4 |
PROPERTIES AND TRENDS ACROSS PERIOD THREE
|
Physical properties of elements in periods.
|
By the end of the
lesson, the learner
should be able to:
To compare electrical conductivity of elements in period 3 |
Group experiments- Construct electrical circuits incorporating a magnesium ribbon, then aluminum foil, then sulphur in turns.
The brightness of the bulb is noted in each case. Discuss the observations in terms of delocalised electrons. |
The periodic table.
|
K.L.B. BOOK IIP. 76
|
|
| 12 | 1-2 |
PROPERTIES AND TRENDS ACROSS PERIOD THREE
|
Physical properties of elements in period 3.
Chemical properties of elements in period 3. |
By the end of the
lesson, the learner
should be able to:
To compare other physical properties of elements across period 3. To compare reactions of elements in period 3 with oxygen. |
Analyse comparative physical properties presented in form of a table.
Explain the trend in the physical properties given. Q/A: Products of reactions of Na, Mg, Al, P, & S with oxygen. Discuss the trend in their reactivity; identify basic and acidic oxides. Exercise ? balanced chemical equations for the above reactions. |
The periodic table.
|
K.L.B. BOOK II P. 77
K.L.B. BOOK II PP. 79-80 |
|
| 12 | 3 |
PROPERTIES AND TRENDS ACROSS PERIOD THREE
|
Chemical properties of elements in the third period.
Oxides of period 3 elements. |
By the end of the
lesson, the learner
should be able to:
To compare reactions of elements in period 3 with water |
Q/A: Review reaction of sodium, Mg, chlorine, with water.
Infer that sodium is most reactive metal; non-metals do not react with water. |
The periodic table.
|
K.L.B. BOOK II PP. 80-81
|
|
| 12 | 4 |
PROPERTIES AND TRENDS ACROSS PERIOD THREE
|
Chlorides of period 3 elements.
|
By the end of the
lesson, the learner
should be able to:
To explain chemical behavior of their chlorides. To describe hydrolysis reaction. |
Comparative analysis, discussion and explanation.
|
The periodic table.
|
K.L.B. BOOK II PP. 77-78
|
|
| 13-14 |
Marking of end term exams and closing |
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