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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 |
WATER AND HYDROGEN
|
Burning candle wax in air.
|
By the end of the lesson, the learner should be able to:
Test for the products of burning candle wax in air. |
Teacher demonstrations; Discussion. |
Candles, lime water. |
K.L.B. BOOK I PP. 91-92 |
|
| 1 | 2-3 |
WATER AND HYDROGEN
|
Reaction of cold water with metals.
Reaction of steam with metals. Hydrogen. - lab preparation. |
By the end of the lesson, the learner should be able to:
Identify products of reaction of cold water with metals. Identify products of reaction of steam with metals. Recall the reactivity series of metals based on reaction with water. Describe laboratory preparation of hydrogen. |
Teacher demonstrations;
Discussion; Write equations. Teacher demonstrations; Test for evolved gas; Discussion; Write equations. Review reactivity series. Discussion. |
Calcium, sodium grain.
Magnesium ribbon, sand, iron / steel wool. Zinc granules, dil HCl, conc. sulphuric acid. |
K.L.B.
BOOK I PP. 92-94 K.L.B. BOOK I PP. 94-96 |
|
| 1 | 4 |
WATER AND HYDROGEN
|
Hydrogen.
- physical properties.
|
By the end of the lesson, the learner should be able to:
State physical properties of hydrogen. |
Probing questions and discussion.
|
Zinc granules,
dil HCl, conc. sulphuric acid, litmus papers. |
K.L.B.
BOOK I PP. 97-98 |
|
| 2 | 1 |
WATER AND HYDROGEN
|
Hydrogen as a reducing agent.
Burning hydrogen in air. |
By the end of the lesson, the learner should be able to:
Describe an experiment to show reducing properties of hydrogen. Identify products of burning hydrogen in air. |
Teacher demonstration;
Discussion; Write equations. Discussion. |
Copper (II) oxide, anhydrous Copper (II) sulphate., dry hydrogen.
Anhydrous calcium chloride, hydrogen, U tube, ice cold water. |
K.L.B.
BOOK I PP. 99-101 |
|
| 2 | 2-3 |
WATER AND HYDROGEN
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE |
Uses of hydrogen.
Atomic and mass numbers. First twenty elements of the periodic table. Isotopes. |
By the end of the lesson, the learner should be able to:
State uses of hydrogen. 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. Define isotopes. Give examples of isotopes. |
Probing questions;
Open discussion. Exposition on new concepts; 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. Exposition of definition and examples of isotopes. Giving examples of isotopes. |
TEXT BOOK
Periodic table. |
K.L.B.
BOOK I PP. 102-103 K.L.B. BOOK II PP. 1-3 |
|
| 2 | 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; |
Periodic table.
text book |
K.L.B.
BOOK II P. 4 PP. 5-9 |
|
| 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 | 2-3 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Groups of the periodic table.
R.M.M. and isotopes. |
By the end of the lesson, the learner should be able to:
Identify elements of the same period. Calculate R.M.M. from isotopic composition. |
Exposition ? definition of a group.
Q/A: examples of elements of the same group. Supervised practice involving calculation of RMM from isotopic composition. |
Periodic table.
text book |
K.L.B. BOOK IIP. 9
K.L.B. BOOK IIPP. 11-13 |
|
| 3 | 4 |
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
|
|
| 4 | 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
|
|
| 4 | 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
|
|
| 4 | 2-3 |
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
|
|
| 4 | 4 |
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
|
|
| 5 | 1 |
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
|
|
| 5 | 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
|
|
| 5 | 2-3 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
|
Oxidation number.
Electronic configuration, ion formed, valency and 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. Relate electronic configuration, ion formed, valency and oxidation number of different elements. |
Q/A: Valencies.
Expose oxidation numbers of common ions. Students complete a table of ions and their oxidation numbers. Written exercise; Exercise review. |
The periodic table.
text book |
K.L.B. BOOK IIvP 18
K.L.B. BOOK IIP 18 |
|
| 5 | 4 |
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
|
|
| 6 | 1 |
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 | 2-3 |
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 |
|
| 6 | 4 |
THE STRUCTURE OF THE ATOM & THE PERIODIC TABLE
CHEMICAL FAMILIES |
Balanced chemical equations.(contd)
Alkali metals. Atomic and ionic radii of alkali metals |
By the end of the lesson, the learner should be able to:
To balance chemical equations correctly. Identify alkali metals. State changes in atomic and ionic radii of alkali metals. |
Supervised practice;
Written exercise. 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. |
text book
The periodic |
K.L.B. BOOK IIPP 25-8
|
|
| 7 | 1 |
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 | 2-3 |
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
|
|
| 7 | 4 |
CHEMICAL FAMILIES
|
Chemical properties of alkali metals.
Reaction of alkali metals with chlorine gas. |
By the end of the lesson, the learner should be able to:
To describe reaction of alkali metals with water. To write balanced equations for reaction of alkali metals with chlorine gas. |
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. 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. |
text book
Sodium, chlorine. |
K.L.B. BOOK IIP. 32
|
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| 8 |
EXAMINATION |
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| 9 |
CLOSURE |
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