Conduct experiment to demonstrate the operations of rectifier/filter circuits.
SS 1 FIRST TERM
Structure of atom
Teachers explain the structure of atom. Students draw the structure of atom chart showing structure of an atom.
CONDUCTORS AND INSULATORS
Teacher; defines and explains conductors and insulators. List examples of conductors and insulators.
Students; draw the structure of an atom in conductors and insulators.
2. Distinguish between conductors and insulators, participate in class discussion.
Instructional Materials; Copper, wire, pieces of wood or rubber.
APPLICATION OF CONDUCTORS AND INSULATORS.
Teacher leads the discussion on various uses of conductors and insulators. Students identify various objects made of conductors and insulators or charts showing materials made of insulators and conductors.
Direct and alternating current.
Teacher; defines and explain with relevant diagrams, direct and alternating current (AcaDc). Students to distinguish between asking and answering question .
Instructional Materials; Dry cells, battery charts showing various sources of alternating current.
Differences between current (D.C) and alternating current
Teacher; guides the students to distinguish between direct and alternating current.
Students; state the difference between direct and alternating current.
Instructional Materials; dry cells, batter, charts, showing various sources of alternating current.
Sources of direct and alternating current.
Teacher; explains sources of direct and alternating current.
Students; mention two sources of alternating current.
Instructional Materials; Dry cells, battery, charts, showing various sources of alternating current.
RELATIONSHIP BETWEEN VOLTAGE CURRENT AND RESISTANCE.
Current, voltage, and resistance
Teacher; defines and explains current, voltage and resistance. Students; define current voltage and resistance.
RELATIONSHIP BETWEEN VOLTAGE, CURRENT AND RESISTANCE
Measurement of voltage, current and resistance.
Teacher; state units, symbols, and instruments for measuring voltage, current, and resistance. Demonstrates using instrument to measure voltage, current and resistance (practical).
Students; to measure current, voltage and resistance.
Teacher; explains capacitors colour coding and rating, inductor rating. Calculation of capacitors in series, parallel and series parallel. Calculation of inductors in series, parallel and series- parallel. Students assisted to calculate values for capacitance and inductance.
ELECTRIC CIRCUIT- BASIC COMPONENTS OF ELECTRIC CIRCUIT. (RESISTANCE, VOLTAGE AND CURRENT).
Teacher; explains electric circuit, different circuit boards, (e.g. veroboard, printed circuit board (PCB). Students; identify electric circuit, and different types of circuit board. Identify basic components of electric circuit.
Instructional Materials; Different circuit boards, circuit diagrams.
Wiring of the different circuit arrangements.
Teacher; explains each circuit arrangement. Students; identify the three circuit arrangements. Carryout practical wiring of different circuit arrangement.