BASIC TECHNOLOGY JS 2

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CHAPTER 1 – FIRST AID AND MATERIALS

First aid is the first and immediate assistance given to any person suffering from either a minor or serious injury, with care provided to preserve life, prevent the condition from worsening, or to promote recovery. It includes initial intervention in a serious condition prior to professional medical help being available, such as performing cardiopulmonary resuscitation (CPR) while waiting for an ambulance, as well as the complete treatment of minor conditions, such as applying a plaster to a cut. First aid is generally performed by someone with basic medical training.In this chapter, you will be exposed to first aid and the materials applied when carrying out first aid on any injured student at the workshop. You will also learn about the ABC of first aid and how to administer first aid to a victim of accident in any setting.

Lessons

FIRST AID MATERIALS IN A FIRST AID BOX APPLICATIONS OF SIMPLE FIRST AID MEASURES ABC OF FIRST AID STEPS OF ADMINISTERING FIRST AID WOUND SUMMARY AND EVALUATION

CHAPTER 2 – RESCUE OPERATIONS

Rescue operations are the actions put in place in order to save life and properties. Rescue operations require high degree of training and are performed by rescue squads either independent or part of a large organization like: police, military, fire service etc.Tools used for rescue operation includes: ambulance, fire service truck, cutting tool used for vehicle extrication, helicopter, rescue rope, rescue dog, first aid box etc.Rescue operations require a high degree of training and are performed by rescue squads, either independent or part of larger organizations such as firepolicemilitaryfirst aid, or ambulance services. 

Lessons

RESCUE OPERATIONS AND WORKERS ASPECTS OF RESCUE OPERATIONS AIMS/PURPOSES OF RESCUE OPERATIONS STEPS INVOLVED IN RESCUE OPERATIONS SUMMARY AND EVALUATION

CHAPTER 3 – MATERIALS AND THEIR COMMON USES

Materials are substances from which other things can be made. Basically, they can be classified into two: metallic and non-metallic. Furthermore, the metallic ones can be subdivided into ferrous and non-ferrous metals, while the non-metallic ones can be divided into natural and synthetic materials. These materials include: wood, metal, glass and ceramics.

Lessons

DEFINITION AND USES OF WOOD HARDWOOD AND SOFTWOOD ADVANTAGES AND DISADVANTAGES OF USING WOOD METALS USES OF ALLOYS BRASS BRONZE SUMMARY AND EVALUATION

CHAPTER 4 – MATERIALS AND THEIR COMMON USES II

In this chapter, you will be learning about the uses of ceramics and glasses as well as plastics and rubber. These materials can be seen in virtually every household, offices and eateries. I know you equally make use of ceramics, glasses, rubber and plastics also. Let us explore more on the importance of these materials.

Lessons

CERAMICS GLASS PLASTICS RUBBER SUMMARY AND EVALUATION

CHAPTER 5 – GEOMETRIC CONSTRUCTION (CIRCLE)

Geometric construction is the drawing of lines, angles, and shapes using only a pen or pencil, compass, and a straight edge. Also, it is a construction employing only straight edge and compasses or effected by drawing only straight lines and circle as opposed to mechanical construction.Geometric construction helps us to study geometry because with the help of geometric construction, we can create angles, bisect lines, draw line segments, and all the geometric shapes.

Lessons

MEANING AND PARTS OF A CIRCLE DIVISION OF A CIRCLE INTO EQUAL PARTS TANGENT AND NORMAL TO A CIRCLE SUMMARY AND EVALUATION

CHAPTER 6 – GEOMETRIC CONSTRUCTION (TRIANGLES AND POLYGONS)

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted with   ABC. Triangles are assumed to be two-dimensional plane figures, unless the context provides otherwise.

Lessons

MEANING AND TYPES OF TRIANGLE INSCRIBED AND CIRCUMSCRIBED CIRCLES TO A GIVEN TRIANGLE POLYGON SUMMARY AND EVALUATION

CHAPTER 7 – PLANE FIGURES

A plane figure is a geometric figure that has no thickness. It lies entirely in one plane and it’s composed of line segments, curves, or a combination of the two. They are often categorized as open or closed. The closed figures can be further categorized into polygonal plane figures and non-polygonal plane figures.

Lessons

PLANE FIGURES CONSTRUCTION OF AREAS OF REGULAR PLANE FIGURES CONSTRUCTION OF PLANE FIGURES OF EQUAL AREAS ENLARGEMENT AND REDUCTION OF PLANE FIGURES SUMMARY AND EVALUATION

CHAPTER 8 – WOODWORK MACHINES

Before any wood can be used, it has to be cut from the forest and transported to a sawmill where further cutting to marketable sizes is carried out. Even after sawmilling operation, i.e. conversion processes, pieces produced from the sawing of the log will still undergo some kind of sawing to bits and pieces in the attempt to produce a work piece.In the modern-day sawing, through improved technology, various machines are now available mainly to cut wood accurately and much faster.

Lessons

WOODWORK MACHINES PORTABLE POWER HAND TOOL MACHINES STATIONARY / HEAVY WOODWORK MACHINES CARE AND MAINTENANCE OF WOODWORK MACHINES SUMMARY AND EVALUATION

CHAPTER 9 – METALWORK MACHINES

Metalwork machines are devices that are driven by electricity to perform different operations on metals like sanding, knurling, drilling, boring, facing, threading, and turning. The machines used in metalwork operations are generally referred to as metalwork machines.

Lessons

DEFINITION AND TYPES OF METALWORK MACHINES SIMPLE METAL WORK TOOLS AND CUTTING CARE AND MAINTENANCE OF METALWORK MACHINES SUMMARY AND EVALUATION

CHAPTER 10 – BELT AND CHAIN DRIVES

Belt and chain drives are used to transmit energy from one shaft to another and for changing speed as in gears. Though the shafts in belt and chain drives are at a greater distance to each other than gear drives.

Lessons

MEANING AND TYPES OF DRIVES BELT DRIVES CHAIN DRIVE DIFFERENCES BETWEEN BELT DRIVE AND CHAIN DRIVE SUMMARY AND EVALUATION

CHAPTER 11 – HYDRAULIC AND PNEUMATIC MACHINES

Hydraulic and pneumatic machines are those machines using actuators like cylinders or motors to produce mechanical motion. They use compressors to produce energy which is transmitted to the actuators. Examples are car jack (hydraulic) and dentist chair (pneumatic).

Lessons

HYDRAULIC MACHINE PNEUMATIC MACHINES USES OF HYDRAULIC AND PNEUMATIC DEVICES ADVANTAGES AND DISADVANTAGES OF HYDRAULIC AND PNEUMATIC DEVICES SUMMARY AND EVALUATION

CHAPTER 12 – GEARS

A gear is a rotating circular machine part having cut teeth or, in the case of a cogwheel or gearwheel, inserted teeth called cogs which mesh with another compatible toothed part to transmit (convert) torque and speed. The basic principle behind the operation of gears is analogous to the basic principle of levers. Geared devices can change the speed, torque, and direction of a power source. Gears of different sizes produce a change in torque, creating a mechanical advantage, through their gear ratio, and thus may be considered a simple machine.

Lessons

DEFINITION AND TYPES OF GEARS APPLICATIONS AND USES OF GEAR GEAR SPEED AND RATIO LUBRICANTS IN GEARS CONSTRUCTION AND USE OF GEAR SUMMARY AND EVALUATION

REVISION EXERCISES