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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 2 | 4 |
GAS LAWS
|
Boyle?s law.
|
By the end of the lesson, the learner should be able to:
State Boyle?s law. Explain Boyle?s law using kinetic theory of matter. |
Teacher demonstration ? Use syringes / pumps to show variation of volume with pressure.
Teacher asks probing questions leading to statement of the law. Discuss the cause of build-up-in pressure. |
Chart
Volume-pressure relationship. Syringes. |
K.L.B. BK III
PP. 1-2 Longhorn Book III PP 1 -2 |
|
| 2 | 5 |
GAS LAWS
|
Boyle?s law: -
Equation and graphical representation.
|
By the end of the lesson, the learner should be able to:
Represent Boyle?s law mathematically and graphically. |
Q/A: relation between volume and pressure mathematically and graphically.
Derive the relation P1V1=P2V2, and sketch graphs to illustrate Boyle?s law. Worked examples. Assignment. |
chart
|
K.L.B. BK III
PP. 3-4 Longhorn Book III PP 3-5 |
|
| 3 | 1-2 |
GAS LAWS
|
Boyle?s law:
Numerical questions.
|
By the end of the lesson, the learner should be able to:
Solve further problems involving Boyle?s law. |
Supervised exercise: Volume in cm?, m?, litres, and pressure in Pa, mmHg, cmHg, atmospheres.
Assignment. |
Calculators.
|
K.L.B. BK III
PP. 4-5 Longhorn Book III PP 6-8 |
|
| 3 | 3 |
GAS LAWS
|
Boyle?s law:
Interpretation of graphs.
|
By the end of the lesson, the learner should be able to:
Plot and intepret graphs involving pressure and volume of gases. |
Completing tables and plotting graphs.
Interpret the plotted graphs. Make deductions from the graphs. |
Graph papers.
|
K.L.B.
BK III PP. 4-5 |
|
| 3 | 4 |
GAS LAWS
|
Charles? law.
|
By the end of the lesson, the learner should be able to:
State Charles? law. Explain Charles? law using kinetic theory of matter. |
Teacher demonstration:- To show expansion of air when heated and contraction when pressure is constant.
Explain increase in volume when temperature is raised. Q/A: - relation between volume and temperature, leading to Charles? law. |
Coloured water,
Glass tube, Warm water, Cork and Flask. |
.K.L.B.
BK III P. 6 Longhorn Book III PP 9-11 |
|
| 3 | 5 |
GAS LAWS
|
Temperature in Degree Celsius and Kelvin.
Equation and graphs from Charles? law.
|
By the end of the lesson, the learner should be able to:
Convert temperature in degree Celsius to Kelvin and vice-versa. |
Teacher explains inter-conversion of the units.
Students complete a table of temperature in the two units. |
student book
|
K.L.B.
BK III P. 10 Longhorn Book III P 11 |
|
| 4 | 1-2 |
GAS LAWS
|
Charles? law- equation and graphical representation.
|
By the end of the lesson, the learner should be able to:
Express Charles? law with equations. Give a graphical representation of Charles? law. |
Derive equations from volume and temperature relationship.
Exposition: - Teacher exposes a volume-temperature graph and extrapolates it to obtain the absolute temperature. The definition of absolute temperature is exposed. |
student book
|
K.L.B. BK III PP. 6-7 Longhorn Book III P 10 |
|
| 4 | 3 |
GAS LAWS
|
Numerical questions on Charles? Law.
|
By the end of the lesson, the learner should be able to:
Solve numerical problems based on Charles? Law. |
Worked examples.
Supervised exercise. Assignment. |
Calculators.
|
K.L.B.
BK III P. 12 Longhorn Book III PP 12-14 |
|
| 4 | 4 |
GAS LAWS
|
Combined Gas Law.
|
By the end of the lesson, the learner should be able to:
Derive the Gas Law. Derive the combined gas law equation. Solve numerical problems using the equation. |
Q/A: - Combining Boyle?s and Charles? Laws.
Worked examples. |
Calculators.
|
K.L.B.
BK III P. 12 Longhorn Book III PP 14-16 |
|
| 4 | 5 |
GAS LAWS
|
Standard conditions,
S.T.P. conditions and R.T.P. conditions.
|
By the end of the lesson, the learner should be able to:
State standard conditions of temperature and pressure of an ideal gas. State room temperature and pressure of a gas. Use standard conditions in problem solving. |
Exposition of s.t.p. and r.t.p.
Problem solving. |
student book
|
K.L.B. BK III P. 14 |
|
| 5 | 1-2 |
GAS LAWS
|
Diffusion.
Rates of diffusion. |
By the end of the lesson, the learner should be able to:
Define diffusion. Describe experiments to show diffusion. Compare rates of diffusion of ammonia gas and hydrogen chloride in air. |
Group experiments. Diffusion of KMnO4 crystals, concentrated ammonia solution. Teacher demonstration: - To deduce rate of diffusion of ammonia gas and hydrogen chloride. Q/A: - Students calculate ratio of rates of diffusion of the gases. |
KMnO4 crystals, Litmus papers. student book |
K.L.B. BK III PP. 14-15 Longhorn Book III P 19 K.L.B. BK III PP. 18-19 Longhorn Book III 21 |
|
| 5 | 3 |
GAS LAWS
|
Graham?s Law.
|
By the end of the lesson, the learner should be able to:
Carry out numerical tasks. |
Solve problems involving RMM, equal volumes of the gases involved.
Supervised practice. Assignment. |
Calculators
|
K.L.B. BK III
PP. 24-26 Longhorn Book III PP 22-24 |
|
| 5 | 4 |
THE MOLE
|
Mole, molar mass and R.A.M.
|
By the end of the lesson, the learner should be able to:
Define the term mole as a quantity of measurement. Relate the mole to R.A.M and molar mass. |
Discuss various analogies that lead to the definition of the mole.
Expose the meaning of R.A.M., Avogadro?s constant and molar mass. |
Chart- table of molar masses of elements.
|
K.L.B. BK III
PP. 27-31 Longhorn Book III PP 34-35 |
|
| 5 | 5 |
THE MOLE
|
Number of moles in a substance.
|
By the end of the lesson, the learner should be able to:
Calculate number of moles in a given mass of a substance. |
Worked examples.
Supervised practice. |
student book
|
K.L.B .BK III
P. 34 Longhorn BK III PP 39-40 |
|
| 6 | 1-2 |
THE MOLE
|
Relative molecular mass
&
Relative formula mass.
|
By the end of the lesson, the learner should be able to:
Define relative molecular mass. Calculate RMM of a compound. |
Q/A: - Review formulae of compounds.
Complete a table of compounds and their molecular / formula mass. |
Calculators.
|
K.L.B.BK III
PP. 34-35 Longhorn Book III PP 44-60 |
|
| 6 | 3 |
THE MOLE
|
Moles and Avogadro?s number.
|
By the end of the lesson, the learner should be able to:
Calculate number of particles in a given number of moles. |
Review standard form of numbers.
Worked examples. Supervised exercise. |
Calculators.
|
K.L.B.BK III
PP. 3132 Longhorn Book III PP 30-31 |
|
| 6 | 4 |
THE MOLE
|
Empirical Formula.
|
By the end of the lesson, the learner should be able to:
Determine empirical formula of a compound given percentage composition by mass. |
Worked examples.
Supervised practice. Assignment. |
student book
|
K.L.B.
BK III P. 43 Longhorn Book III PP 66-71 |
|
| 6 | 5 |
THE MOLE
|
Molecular formula.
|
By the end of the lesson, the learner should be able to:
Define molecular formula of a compound. Find molecular formula given percentage composition of a compound by mass. |
Worked examples.
Supervised practice. |
Calculators.
|
K.L.B.BK III
P. 45 Longhorn Book III PP 73-75 |
|
| 7 | 1-2 |
THE MOLE
|
Concentration of a solution.
|
By the end of the lesson, the learner should be able to:
Define concentration of a solution. Find concentration of a solution in grams/litre and moles/litre. |
Q/A: - Equivalent ratios, e.g. 4g dissolved in 500cm? and
8g in 1 litre. Worked examples on concentration of solutions. |
chart
|
K.L.B. BK III
PP. 46-48 Longhorn Book III PP 76-81 |
|
| 7 | 3 |
THE MOLE
|
Molarity of a solution.
|
By the end of the lesson, the learner should be able to:
Define molarity of a solution. Find molarity of a solution in M/dm? |
Teacher explains that molarity of a solution is given in moles of the solute per litre.
Worked examples. Supervised exercise. |
student book
|
K.L.B. BK III
PP. 48-49 Longhorn Book III PP 76-81 |
|
| 7 | 4 |
THE MOLE
|
Preparation of molar solutions.
|
By the end of the lesson, the learner should be able to:
Define molar solutions. Prepare molar solutions. |
Q/A: - Description of preparation of molar solutions.
|
Volumetric flasks, teat droppers/wash bottle.
Sodium hydrogen pellets. Weighing balance. |
K.L.B. BK III
PP. 50-51 Longhorn Book III PP 78-81 |
|
| 7 | 5 |
THE MOLE
|
Calculators on molar solutions.
|
By the end of the lesson, the learner should be able to:
Solve numerical calculations on molar solutions. Problems on molar solutions. |
Worked examples.
Supervised exercise. Assignment. |
student book
|
K.L.B. BK III
P 51 Longhorn Book III PP 76-81 |
|
| 8 | 1-2 |
THE MOLE
|
Dilution of solutions.
Stoichiometry of a chemical reaction. |
By the end of the lesson, the learner should be able to:
Calculate molarity of a solution after dilution. To determine mole ratio of given reactions. |
Group experiments.
Calculations. Group experiments: - Determine masses, hence moles of reacting CuSO4 solution and iron metal. |
student book
CuSO4 solution and iron metal. |
K.L.B. BK III
PP. 76-81 K.L.B. BK III P. 56 Longhorn Book III PP 87-92 |
|
| 8 | 3 |
THE MOLE
|
Stoichiometric equations.
|
By the end of the lesson, the learner should be able to:
To define a stoichiometric equation. |
To write stoichiometric equations of the above reactions.
|
student book
|
K.L.B. BK III
Longhorn Book III PP 14-16 PP. 88-93 |
|
| 8 | 4 |
THE MOLE
|
Stoichiometric equations of various reactions.
|
By the end of the lesson, the learner should be able to:
To investigate and determine Stoichiometric equations of various reactions. |
Class experiments.
Problem solving. |
student book
|
K.L.B. BK III
P. 62 |
|
| 8 | 5 |
THE MOLE
|
Stoichiometric equations of various reactions.
|
By the end of the lesson, the learner should be able to:
To investigate and determine Stoichiometric equations of various reactions. |
Class experiments.
Problem solving. |
student book
|
K.L.B. BK III
P. 62 |
|
| 9 | 1-2 |
RADIOACTIVITY
|
Definition of radioactivity.
Alpha particles. |
By the end of the lesson, the learner should be able to:
Define radioactivity, a nuclide and radioactive decay. Differentiate between natural and artificial radioactivity. State properties of alpha particles. Describe methods of detecting alpha particles. |
Q/A: Review the atomic structure. Exposition: symbolic representation of an atom / nucleus. Exposition: meaning of radioactivity and radioactive decay. Discussion: artificial and natural radioactivity. Q/A: position of helium in the periodic table. Expository approach: |
student book
|
K.L.B. BK IV
Pages 249-251 K.L.B. BK IV Pages 251-253 |
|
| 9 | 3 |
RADIOACTIVITY
|
Equations involving alpha particles.
Beta particles. Gamma rays. |
By the end of the lesson, the learner should be able to:
Write down and balance equations involving alpha particles. State properties of beta particles. Define isotopes and isobars. Write down balanced equations involving both alpha and beta particles. State properties of gamma rays. |
Q/A: Review atomic and mass numbers.
Examples of balanced equations. Supervised practice. Q/A: Review isotopes. Expository approach: teacher briefly exposes new concepts. Examples of equations. Supervised practice. Assignment. |
student book
|
K.L.B. BK IV
Page 257 |
|
| 9 | 4 |
RADIOACTIVITY
|
Radioactive
Half-Life.
Radioactive decay curve. |
By the end of the lesson, the learner should be able to:
Define the term radioactive half-life. Solve problems relating to half ?life Plot a radioactive decay curve to deduce the half ?life from the curve. |
Teacher demonstration: Dice experiment.
Exposition of the term half-life. Worked examples. Written exercise Drawing a radioactive decay curve inferring the half-life of the sample from the graph. |
Dice.
Graph papers. |
K.L.B. BK IV
Pages 253-4 |
|
| 9 | 5 |
RADIOACTIVITY
|
Nuclear fusion and nuclear fission.
Applications of radioactivity.
|
By the end of the lesson, the learner should be able to:
Differentiate between nuclear fusion and nuclear fission. Describe applications of radioactivity. |
Exposition of new concepts accompanied by nuclear equations.
Brief discussion: Carbon dating, detecting leakage, medication, agriculture, industry; effect of static charges, etc. |
student book
|
K.L.B. BK IV
Pages 259-260 |
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