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RADIO TV & ELECTRONICS

SS 2 THIRD TERM

WEEK

TOPIC/CONTENT

ACTIVITIES

1

RADIO TRANSMITTER.

  1. Functions and operation of radio transmitter.

  2. Block diagram of radio transmitter.

  3. Stages of radio transmitter.

The teacher explains the functions and operation of radio transmitter, displays the chart of the block diagram of a radio transmitter, and uses the block diagram in the chart displayed, explains the functions of each stage of radio transmitter, and observe the chart, and listen to the teacher’s explanation on the functions of each stage of radio transmitter.

2

RADIO RECEIVER.

  1. Functions and operations of radio receiver.

  2. Types of radio receiver; CRF, super heterodyne, and FM receivers.

The teacher explains the basic functions and operations of radio receiver, while the students take notes on the basic functions and operation of radio receiver.

3

RADIO RECEIVER.

  1. Block diagram of radio receiver, and functions of each stage.

  2. Advantages and disadvantages of different types.

The teacher provides a chart showing the block diagram of a radio receiver and explains the function of each stage, while students draw the block diagram of a radio receiver from the chart, and take notes on the explanations of the functions.

4

SELECTIVITY AND SENSITIVITY

  1. Definition of selectivity and sensitivity.

  2. Processes of tuning and selectivity in radio receiver.

The teacher defines selectivity and sensitivity. Uses a radio receiver to explain the concept, while students observe the performance of the radio receiver used to demonstrate sensitivity and selectivity.

5

RESONANCE CIRCUIT

  1. Definition of resonance.

  2. Types of resonance, series and parallel.

  3. Series/parallel.

  4. Bandwidth.

The teacher explains the functions of tuner by operating a radio receiver, uses chart to explain the various types of resonance (series, parallel, and series/ parallel), and explains bandwidth and gives specific examples of frequency ranges, while students draw the sketches, explaining the types of resonance perform calculation involving frequency ranges to determine bandwidth.

6

SATELLITE COMMUNICATION SYSTEMS

  1. Elements of satellite communication systems.

  2. Types of satellite systems.




The teacher defines and state types of satellite communication systems (passive and active).

Lists the elements of a satellite system; earth station, ground based satellite, and state their functions while students ask and answer questions relating to satellite communication.



7

SATELLITE COMMUNICATION SYSTEMS.

  1. Transmission and reception of satellite to television.

  2. Antenna for satellite communication systems.

The teacher discusses and explains transmission and reception of satellite communication, demonstrates the installation of a satellite dish, and organizes and take students to visit a satellite TV and radio station. E.g AIT, NTA etc

8

ELECTRONIC REPAIRS

  1. Power supply units.

  2. FR circuit.

The teacher provides radio receiver set, and demonstrate the following;

  1. Dismantles and reassemble the power supply unit.

While the students observe the teacher dismantle and reassemble the various unit in a radio set.

9

ELECTRONIC REPAIR

  1. IF amplifier circuit.

  2. AF amplifier circuit.

  3. Car radio.

The teacher dismantles RF, IF, AF, and detector stages, provides a car radio set, and demonstrates the installation, and carries out fault repairs on car radio set. While the students observe the teacher install a car radio, and carry out repair on a faulty car radio set.

10

FAULT FINDING AND REPAIRS IN RADIO RECEIVER

  1. Types of fault in radio.

  2. Components responsible for faults.

The teacher lists fault finding techniques after checking the plug to maintain power supply, uses flow chart for signal injection and signal tracing. While the students observe the teacher’s demonstration on how to apply the techniques.

11

FAULT FINDING AND REPAIR IN RADIO RECEIVER.

  1. Remedies.

  2. Alignments (IF and RF).

The teacher create faults in radio set for students to trace the fault, provides radio receiver for fault finding and repairs, and demonstrates alignments of RF and IF, using the necessary equipments, and tools for FM and AM radio receivers. While the students practice the fault finding techniques to trace the fault created by the teacher, and observe the teacher demonstrate on the procedure of alignment of IF and RF stages using the necessary equipments and tools.






































AUTO MECHANIC WORK

SS 2 FIRST TERM

WEEK

TOPIC/CONTENT

ACTIVITIES

1

PETROL ENGINE – TWO STROKE CYCLE


Teacher defines and explains two stroke cycle operation. Students examine the working sequence.

Resources; Live engine, i.e two stroke charts.



2

PETROL ENGINE – FOUR STROKE CYCLE.

Teacher explain and illustrate four stroke cycle engine. Students observe the working operation of four strokes.

Resources; Live engine, charts, posters.



3

PETROL ENGINE – ADVANTAGES OF FOUR STROKE AND TWO STROKE

Teacher distinguish between two stroke and four stroke cycle engine. Students observe the differences between two stroke and four stroke engine.

Resources; Charts, posters on spark ignition engine (SIE)



4

DIESEL ENGINE—TWO STROKE CYCLE AND FOUR STROKE CYCLE.

Teacher explain and illustrate the principles of operation of two & four stroke cycle engines, emphasize on the difference between the two. Students observe the operational sequence of tow stroke & four stroke cycle. Distinguish between the layout and advantages.

Resources; Live engine of compression ignition engine (CIE). Two and four stroke.



5

COMPONENTS OF A TRANSMISSION UNIT (CLUTCH) – IDENTIFICATION OF PARTS AND CHARACTERISTICS OF CLUTCHES.

Teacher illustrate with sketches, types of transmission components, i.e pressure plate, disc, release bearing.

Students make sketches on types of clutches. Observe the operation. Resources; Gearbox, posters, charts.



6

COMPONENTS OF A TRANSMISSION UNIT (CLUTCH) CONSTRUCTION AND OPERATION OF A SINGLE PLATE CLUTCH.

Teacher list various parts in a transmission system. Students identify transmission components.

Resources; Live vehicle, clutch , gearbox, posters, charts.



7

COMPONENTS OF A TRANSMISSION UNIT (GEAR BOX)—OPERATION OF A SLIDING MESH GEARBOX AND REVERSE MECHANISM.

Teacher dismantle and identify parts of gearbox, illustrate and explain. Students observe the operation, and the dismantling.

Resources; Live vehicle, gearbox, posters, charts, etc




8

SUSPENSION SYSTEM—LEAF SPRING AND COIL SPRING

Teacher assist in tracing faulty system. Students identify faulty suspension.

Resources; Leaf spring, spring, hydraulic suspension, chart.



9

SUSPENSION SYSTEM—HYDRAULIC SUSPENSION SYSTEM.

Teacher demonstrates the removal and replacement of suspension system. Students observe and demonstrate the removal and replacement of suspension system.

10

SUSPENSION SYSTEM—FAULT FINDING IN SUSPENSION SYSTEM

Teacher identify faulty areas. Students observe the fault finding. Resources; Charts, posters, leaf spring, and copulas spring

11

SUSPENSION SYSTEM—REPAIR OF SUSPENSION SYSTEM

Teacher repair faulty suspension system. Students observe the repair of the faulty side.

Resources; Coil spring, leaf spring.



12

SUSPENSION SYSTEM—ADVANTAGES OF SUSPENSION SYSTEM TYPES

Teacher demonstrates how the suspension system works. Students observe how the suspension system works.

Resources; Suspension system, charts, posters.





















AUTO MECHANIC WORK

SS 2 SECOND TERM

WEEK

TOPIC/CONTENT

ACTIVITIES

1

STEERING SYSTEM—STEERING FAULTS, GEARBOX, RACK AND PINION, WHOM & WHEEL, WOM & NUT ETC

Teacher explain the effect of faulty system. Students note the effects of faulty steering system. Resources; Real objects, steering, gear box e.g whom & wheel.

2

STEERING SYSTEMS—ADJUSTMENT OF STEERING UNIT

Teacher demonstrate how to remove and replace steering unit. Demonstrate the adjustment of the steering unit. Students observe the removal of steering unit, observe and participate in adjustment of steering unit. Resources; Posters, charts, spanner, hammers, screw drivers.

3

ENGINE LUBRICATION—VISCOSITY AND VISCOSITY INDEX

Teacher demonstrates on oil viscosity. Students observe and listen attentively as the teacher demonstrates.

Differentiate grade of oil.



4

ENGINE LUBRICATION—OIL FILTERS & QUALITIES OF LUBRICANTS

The teacher will list quality of lubricant.

Students observe and touch oil, and feel the viscosity. Resources; Tools and equipments, oil can.



5

COOLING SYSTEM—AIR COOLING, WATER AND AIR COOLING SYSTEM.

Teacher guide in identifying parts of cooling system, demonstrate removal.

Students identify cooling system parts.

Resources; Radiator, fan- blade, fan belt, rubber hoses, charts.


6

PROPERTIES OF FUEL—FUEL PROPERTIES

The teacher explains the properties of fuel. Students observe and listen attentively as the teacher demonstrates.

Resources; live vehicle chart, posters.



7

CARBURETTORS—SIMPLE AND MULTI-JET CABURETTORS.

The teacher will describe with sketches, the operation of different types of caburrators. Students copy the sketches. Resources; live vehicle charts, posters.


8

CABURETTORS— REMOVE AND REPLACE CABURATTORS.

Teacher will carry out diagnosis of faults in carburetors. Students carry out simple carburetor maintenance. Resources; live vehicle, spanners, hammers, posters, charts etc.

9

AIR CLEANER, FUNCTIONS OF AIR CLEANER, SERVICING OF AIR CLEANER.

The teacher will define and explain the functions of cleaner. The students will remove and replace air cleaner. Resources; live vehicle, spanner, hammer, charts, etc.

10

AIR CLEANER—IMPORTANCE OF SERVICING AIR CLEANERS.

Teacher demonstrates how to remove and replace air cleaners.

Students remove and replace cleaners.

Resources; complete air cleaner, spanner, and screw drivers, etc.


11

Revision




12

Examination




AUTO MECHANIC WORK

SS 2 THIRD TERM

WEEK

TOPIC/CONTENT

ACTIVITIES

1

BRAKING SYSTEM—MECHANICAL AND HYDRAULIC OPERATION OF DISC AND DRUM BRAKES.


The teacher will explain the operations of mechanical and hydraulic operation of disc and drum brakes.

Students identify the operational differences between types of brakes.

Resources; master cylinder, wheel cylinder, brake calipers, live vehicle, tools and equipment, charts.


2

BRAKING SYSTEM—MASTER CYLINDER OPERATIONS

The teacher will illustrate and draw master cylinder.

The students will assess the correct function of master cylinder.

Resources; master cylinder, live vehicle, tools, equipments, charts, etc


3

BRAKING SYSTEM-- ADJUSTMENTS OF BRAKES

The teacher will demonstrate how to remove and replace brake component parts.

The students will carry out a simple brake adjustment on a hydraulic operation.

Resources; live vehicle, tools, equipments, charts, and posters.


4

BRAKING SYSTEM—FAULTS IN BRAKING SYSTEM.

The teacher will demonstrate how the wheel cylinder operates.

The students will carry out a simple wheel cylinder operation.

Resources; live vehicle, tools, equipments, charts, and posters.


5

BRAKING SYSTEM—FAULTS IN BRAKING SYSTEM.

The teacher demonstrates how to remove the brake to find out the fault.

The students carry out a simple brake adjustment on an hydraulic operation. Resources; complete tool box, live vehicle, equipments, etc.



6

BRAKING SYSTEM—REMOVAL, AND REMOVAL OF BRAKE LINING

The teacher will demonstrate the procedures for bleeding brakes.

The students will participate in brake bleeding during operation.

Resources; complete tool box, live vehicle, charts, equipments etc.


7

WHEEL AND TYRE—ROAD WHEELS AND TYRE PRESSURE.

The teacher will carry out a demonstration on vulcanizing of tubes and tubeless tyres.

The students will explain the vulcanizing of tubes and tubeless tyres.

Resources; live vehicle, wheel rims, tyres, tubes, tyre pressure guage, vulcanizing equipments.


8

WHEELS AND TYRE SERVICE—VULCANIZED TUBES AND TUBELESS TYRES.

The teacher will state the causes of tyre wear, and remedies.

The students will practice the process involved in vulcanizing.

Resources; tubes, tyres, tyre pressure, vulcanizing equipments.


9

WHEEL AND TYRE SERVICE—WHEEL CONSTRUCTION

The teacher will explain wheel construction.

The students will listen attentively. Resources; wheels, wheel rims, live vehicle, equipments, etc.



10

WHEELS AND TYRE SERVICE—TYRE REGULATIONS

The teacher will explain types of tyre construction. Students practice the procedures involved in tyre construction.

Resources; tyre, tubes, tyre pressure gauge, vulcanizing equipments.



11

MANAGEMENT—

  • Definition of management, planning, organizing, controlling, staffing, directing/supervising.

  • Managing resources.

  • Concept of authority.

The teacher will define management, explain the function of management, explain the purpose of managing resources.

The will students listen to the teacher attentively and participate in class discussion.

Resources; organizational chart of a business organogram.


12

Revision

Revision

13

Examination

Examination

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