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WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
---|---|---|---|---|---|---|---|---|
1 | 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
|
|
2 | 1 |
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
|
|
2 | 2-3 |
CHEMICAL FAMILIES
|
Chemical properties of alkaline earth metals.
Reaction of alkaline earth metals with water.
Reaction of alkaline earth metals with chlorine gas. |
By the end of the
lesson, the learner
should be able to:
To describe reaction of alkaline earth metals with water. To write balanced equations for reaction of alkaline earth metals with chlorine gas. |
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. 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. |
Some alkaline earth metals.
Sodium, chlorine. |
K.L.B. BOOK IIP. 39
K.L.B. BOOK II P. 41 |
|
2 | 4 |
CHEMICAL FAMILIES
|
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 reactions of alkaline earth metals with dilute acids. |
Changing word to chemical equations.
Supervised practice. |
revision book
|
K.L.B. BOOK II PP. 43
|
|
3 | 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
|
|
3 | 2-3 |
CHEMICAL FAMILIES
|
Chemical formulae of alkaline earth metals.
Uses of some alkaline earth metals and their compounds. |
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. State uses 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. Descriptive approach: Teacher elucidates uses of alkaline earth metals. |
text book
|
K.L.B. BOOK II PP. 45-47
K.L.B. BOOK II PP. 45-47 |
|
3 | 4 |
CHEMICAL FAMILIES
|
Halogens.
Physical properties of halogens.
Comparative physical 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. |
Teacher demonstration: - To examine electrical properties of iodine, solubility in water of chlorine.
|
Iodine crystals, electrical wire, a bulb.
text book |
KLB BK II
P. 47 |
|
4 | 1 |
CHEMICAL FAMILIES
|
Chemical properties of halogens.
|
By the end of the
lesson, the learner
should be able to:
To describe laboratory preparation of chlorine gas. To describe reaction of halogens with metals. |
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. |
Chlorine, iron wool, bromine.
|
K.L.B. BOOK IIPP. 48-50
|
|
4 | 2-3 |
CHEMICAL FAMILIES
|
Equations of reaction of halogens with metals.
Reaction of halogens with water. |
By the end of the
lesson, the learner
should be able to:
To write balanced chemical equations of reactions involving halogens. To describe reaction of halogens with water and the results obtained. |
Re-write word equations as chemical equations then balance them.
Supervised practice. Bubbling chlorine gas through water. Carry out litmus test for the water. Explain the observations. |
text book
Chlorine gas, litmus papers. |
K.L.B. BOOK II P. 50
K.L.B. BOOK II P. 51 |
|
4 | 4 |
CHEMICAL FAMILIES
|
Some uses of halogens and their compounds.
|
By the end of the
lesson, the learner
should be able to:
To state uses of halogens and their compounds. |
Teacher elucidates uses of halogens and their compounds.
|
text book
|
K.L.B. BOOK II pp 52
|
|
5 | 1 |
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
|
|
5 | 2-3 |
CHEMICAL FAMILIES
STRUCTURE & BONDING |
Uses of noble gases.
Chemical bonds. Ionic bond. Ionic bond representation. Grant ionic structures. |
By the end of the
lesson, the learner
should be able to:
State uses of noble gases. Use dot and cross diagrams to represent ionic bonding. |
Teacher elucidates uses of noble gases.
Drawing diagrams of ionic bonds. |
text book
Chart- dot and cross diagrams. Models for bonding. Giant sodium chloride model. |
K.L.B. BOOK IIP. 54
K.L.B. BOOK II P. 58 |
|
5 | 4 |
STRUCTURE & BONDING
|
Physical properties of ionic compounds.
Covalent bond. |
By the end of the
lesson, the learner
should be able to:
Describe physical properties of ionic compounds. Explain the differences in the physical properties of ionic compounds. |
Analyse tabulated comparative physical properties of ionic compounds.
Teacher asks probing questions. |
text book
|
K.L.B. BOOK IIPP 58-59
|
|
6 | 1 |
STRUCTURE & BONDING
|
Co-ordinate bond.
|
By the end of the
lesson, the learner
should be able to:
To describe the co-ordinate bond To represent co-ordinate bond diagrammatically. |
Exposition- teacher explains the nature of co-ordinate bond.
Students represent co-ordinate bond diagrammatically. |
text book
|
K.L.B. BOOK II P 65
|
|
6 | 2-3 |
STRUCTURE & BONDING
|
Molecular structure.
Trend in physical properties of molecular structures. Giant atomic structure in diamond. Giant atomic structure in graphite. |
By the end of the
lesson, the learner
should be able to:
To describe the molecular structure. To give examples of substance exhibiting molecular structure To describe giant atomic structure in diamond. To state uses of diamond. |
Discussion ? To explain formation of the giant structure and give examples of substance exhibiting molecular structure.
Diagrammatic representation of diamond. Discuss uses of diamond. |
text book
Sugar, naphthalene, iodine rhombic sulphur. Diagrams in textbooks. |
K.L.B. BOOK IIP 65
K.L.B. BOOK II P 69 |
|
6 | 4 |
STRUCTURE & BONDING
|
Metallic bond.
Uses of some metals.
|
By the end of the
lesson, the learner
should be able to:
To describe mutual electronic forces between electrons and nuclei. To describe metallic bond. To compare physical properties of metals. To state uses of some metals. |
Discussion:
Detailed analysis of comparative physical properties of metals and their uses. Probing questions & brief explanations. |
text book
|
K.L.B. BOOK IIP 70
|
|
7 | 1 |
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
|
|
7 | 2-3 |
PROPERTIES AND TRENDS ACROSS PERIOD THREE
|
Physical properties of elements in period 3.
Chemical properties of elements in period 3. Chemical properties of elements in the third period. |
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 water |
Analyse comparative physical properties presented in form of a table.
Explain the trend in the physical properties given. 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 P. 77
K.L.B. BOOK II PP. 80-81 |
|
7 | 4 |
PROPERTIES AND TRENDS ACROSS PERIOD THREE
|
Oxides of period 3 elements.
Chlorides of period 3 elements. |
By the end of the
lesson, the learner
should be able to:
To identify bonds across elements in period 3. To explain chemical behavior of their oxide. |
Comparative analysis, discussion and explanation.
|
The periodic table.
|
K.L.B. BOOK II P. 84
|
|
8 | 1 |
SALTS
|
Types of salts.
|
By the end of the
lesson, the learner
should be able to:
Define a salt. Describe various types of salts and give several examples in each case. |
Descriptive approach. Teacher exposes new concepts.
|
text book
|
K.L.B. BOOK II P. 91
|
|
8 | 2-3 |
SALTS
|
Solubility of salts in water.
Solubility of bases in water. |
By the end of the
lesson, the learner
should be able to:
To test solubility of various salts in cold water/warm water. To test solubility of various bases in water. To carry out litmus test on the resulting solutions. |
Class experiments- Dissolve salts in 5 cc of water.
Record the solubility in a table, Analyse the results. Class experiments- Dissolve salts in 5cc of water. Record the solubility in a table, Carry out litmus tests. Discuss the results. |
Sulphates, chlorides, nitrates, carbonates of various metals.
Oxides, hydroxides, of various metals, litmus papers. |
K.L.B. BOOK II PP. 92-93
K.L.B. BOOK IIPP. 94-95 |
|
8 | 4 |
SALTS
|
Methods of preparing various salts.
|
By the end of the
lesson, the learner
should be able to:
To describe various methods of preparing some salts. |
Experimental and descriptive treatments of preparation of salts e.g. ZnSO4, CuSO4, NaCl and Pb(NO3)2.
|
CuO, H2SO4, HCl, NaOH, PbCO3, dil HNO3.
|
K.L.B. BOOK II pp96
|
|
9 | 1 |
SALTS
|
Direct synthesis of a salts.
|
By the end of the
lesson, the learner
should be able to:
To describe direct synthesis of a salt. To write balanced equations for the reactions. |
Group experiments- preparation of iron (II) sulphide by direct synthesis.
Give other examples of salts prepared by direct synthesis. Students write down corresponding balanced equations. |
Iron,
Sulphur |
K.L.B. BOOK II P. 104
|
|
9-10 |
MIDTERM BREAK |
|||||||
10 | 4 |
SALTS
|
Ionic equations.
Effects of heat on carbonates. |
By the end of the
lesson, the learner
should be able to:
To identify spectator ions in double decomposition reactions. To write ionic equations correctly. |
Q/A: Ions present in given reactants.
Deduce the products of double decomposition reactions. Give examples of equations. Supervised practice. |
PbNO3, MgSO4 solutions.
Various carbonates. |
K.L.B. BOOK II
|
|
11 | 1 |
SALTS
|
Effects of heat on nitrates.
Effects of heat on sulphates. |
By the end of the
lesson, the learner
should be able to:
To state effects of heat on nitrates. To predict products resulting from heating metal nitrates. |
Group experiments- To investigate effects of heat on various metal nitrates.
Observe various colour changes before, during and after heating. Write equations for the reactions. |
Common metal nitrates.
Common sulphates. |
K.L.B. BOOK II PP. 110-111
|
|
11 | 2-3 |
SALTS
SALTS EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES. |
Hygroscopy, Deliquescence and Efflorescence.
Uses of salts. Electrical conductivity. |
By the end of the
lesson, the learner
should be able to:
To define hygroscopic deliquescent and efflorescent salts. To give examples of hygroscopic deliquescent and efflorescent salts. To state uses of salts |
Prepare a sample of various salts.
Expose them to the atmosphere overnight. Students classify the salts as hygroscopic, deliquescent and / or efflorescent. Teacher elucidates uses of salts. |
Various solids, bulb, battery, & wires. |
K.L.B. BOOK II P. 114
K.L.B. BOOK II P. 114 |
|
11 | 4 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Molten electrolytes.
Electrolysis. |
By the end of the
lesson, the learner
should be able to:
To test for electrical conductivities molten electrolytes. |
Group experiments- to identify electrolytes in molten form.
Explain the difference in molten electrolytes. |
Molten candle wax
Sugar Sulphur Lead oxide. |
K.L.B. BOOK IIPP. 120-121
|
|
12 | 1 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Aqueous electrolytes.
Electrodes.
|
By the end of the
lesson, the learner
should be able to:
To define an electrolyte To test for electrical conductivities of electrodes. |
To investigate chemical effect of an electric current.
Classify the solutions as electrolyte or non -electrolytes. Discuss the electrical properties of the solutions. |
Graphite electrodes
Battery Various aqueous solutions switch bulb. |
K.L.B. BOOK II PP.122-123
|
|
12 | 2-3 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Reaction on electrodes.
Binary electrolyte. Application of electrolysis. |
By the end of the
lesson, the learner
should be able to:
To describe half- equation reactions at the cathode and anode To define a binary electrolyte. To state the products of a binary electrolyte. |
To demonstrate ?Electrolysis of molten lead (II) bromide
Observe colour changes Explanation of half-equations and reactions at the electrodes. Completing a table of electrolysis of binary electrolytes. |
Graphite electrodes
Battery Various aqueous solutions switch. text book |
K.L.B. BOOK II PP.126-127
K.L.B. BOOK II P.127 |
|
12 | 4 |
EFFECTS OF AN ELECTRIC CURRENT ON SUBSTANCES.
|
Electroplating.
|
By the end of the
lesson, the learner
should be able to:
To describe electroplating process. |
Experiment- Left overnight.
Electroplating an iron nail with silver nitrate/ copper sulphate. Brief discussion. |
Silver nitrate
Iron nail Complete circuit battery. |
K.L.B. BOOK II PP. 129-30
|
|
13-14 |
END TERM EXAMINATIONS |
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