Basic Technology Lesson Note JSS 2 Frist Term
Basic Technology Scheme of Work for JSS2First Term
REVISION OF LAST TERM’S WORK
INFORMATION AND COMMUNICATION TECHNOLOGY (1)
INFORMATION AND COMMUNICATION TECHNOLOGY (2)
TRANSMISSION SYSTEM OF GSM
FIRST AID AND MATERIALS
MATERIALS AND THEIR COMMON USES
GEOMETRICAL CONSTRUCTION
GEOMETRICAL CONSTRUCTION (ANGLES)
GEOMETRICAL CONSTRUCTION (CIRCLES)
TRIANGLE
MATERIALS & THEIR COMMON USES (CONT’D)
RESCUE OPERATION
CONSTRUCTION AND SKETCHES
TOPIC: GEOMETRIC CONSTRUCTION – ANGLES (CONT’D)
Basic Technology JSS2 First Term
Below are the 2022 complete basic technology lesson notes for Jss2 First term
Week 2
Topic: Information and Communication Technology (1)
Content
- Analogue and Digital Communication system
- The merits and demerits of analogue and Digital Communication system
Information has been very important in business, politics, education and sports in particular and all walks of life in general. Several research works have been done on ways to improve the communication of information from one location to another (point-to-point) and from location to many locations (point-to-multipoint). The technology for transferring information started with an analogue communication system and it has now been improved to a digital communication system which offers efficiency, better performance and greater flexibility. To learn more, Click here
Week 3
Topic: Information and Communication Technology (2)
Content:
- Meaning of ICT
- The nature of ICT
ICT is an acronym that stands for Information and Communication Technology. ICT covers a broad spectrum of activities involving the production, processing and distribution of information and knowledge. The basic element of ICT and the determinants of the level of access to it are explained below;
- Information “I” can be in the form of voice, text, images or data.
- Communication “C” is the transfer of information from either point-to-point or point-to-multipoint. The transfer is usually over some distance.
- Technology “T” with it, the transfer of information is affected. The technology is by electronic means. The transfer of information is often achieved via networks of sending and receiving equipment, wires and satellite links. To learn more, Click here
Week 4
Topic: Transmission System of GSM
Content:
- Schematic diagram of GSM Transmission process
- Meaning of internet and its process
- Internet equipment and transmission process
- Merits and demerits of internet
Schematic
GSM is an acronym that stands for Global System for Mobile Communications. The basic architect of the GSM network comprises a Base Transceiver Station (BTS), Base Station Controller (BSC), Mobile Switching Centre (MSC), Home Location Register (HLR), Visitor Location Register (VLR), Equipment-Identity Register (EIR), Network Management System (NMS) and Mobile Station (MS) which is made up of the mobile equipment and the Subscriber Identity Module (SIM).
GSM has defined several standard interfaces; the radio interface (Um), the interface between MSC and BSC (A interface) and the signalling interface, which allows roaming between networks. Roaming is a service unique to GSM which enables a subscriber to make and receive calls when outside the service area of his home network e.g. when travelling abroad. To learn more, Click here
Week 1)
Topic: First Aid and Materials
Content:
- First aid box and materials
- Application of simple first aid
First Aid
First aid is the assistance given to any person suffering a sudden illness or injury, with care provided to preserve life, prevent the condition from worsening, and/or promote recovery. It includes initial intervention in a serious condition prior to professional medical help being available, such as performing CPR while awaiting an ambulance, as well as the complete treatment of minor conditions, such as applying a plaster to a cut. It is the assistance given to any person suffering a sudden illness or injury, with care provided to preserve life, prevent the condition from worsening, and/or promote recovery.
It includes initial intervention in a serious condition prior to professional medical help being available, such as performing CPR whilst awaiting an ambulance, as well as the complete treatment of minor conditions, such as applying a plaster to a cut. To learn more, Click here
Week 3)
Topic: Material and Their Common Uses
Contents
- Uses of Wood
- Uses of Metals
Uses of Wood
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic material, wood is sometimes defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs.In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. To learn more, Click here
Week 7
Topic: Geometrical Construction
Content
- Definition of lines
- Types and uses of line
- Construction of lines and angles
- Bisections of lines
- Division of limes
Lines
It is important to understand the following terms before proceeding to the construction of lines and angles.
A point is defined as something which has a position and an extremely small magnitude so that it is barely visible. A point can be made on paper by a well-sharpened pencil or a needle. A point is used to indicate position only, and in technical drawing, it is usually represented by a cross or a dot.
A line has position and length, but has virtually no thickness. A line may either be straight or curve. A straight is defined as the shortest distance between two points. Two lines are said to be parallel if they are always the same distance apart and cannot meet, however far they may be produced (extended) in either direction. To learn more, Click here
Week 6
Topic: Geometrical Construction (Angles)
Content
- Definition of Angles
- Types of Angles
An angle is formed when two straight lines meet at a set point. In other words, an angle is an inclination to each other of two straight lines, which meet at the point as shown.
Week 10
Topic: Geometric Construction (Circles)
Content
- Definition of Circles
- Types and Parts of a Circle
- Bisection, construction of tangent and normal to given circle
Definition Of Circle
A circle is a simple closed shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The distance between any of the points and the centre is called the radius.
A circle is a simple closed curve which divides the plane into two regions: an interior and an exterior. In everyday use, the term “circle” may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is only the boundary and the whole figure is called a disc.
Week 8
Topic: Triangle
Content:
- Definition and Types
INTRODUCTION
A triangle may be defined as a plane figure contained by three straight lines, known as the sides of the triangles. One of the sides, usually the one most nearly horizontal, is identified as the base.
A triangle, as its name implies, has three angles. The two angles at the ends of the base are called base angles. The third angle, which is opposite the base, is called the vertical angle is formed is termed the vertex of the triangle.
The sum of the three angles of any triangle is 1800.
You can check this statement by drawing a triangle in any manner you like. Measure the three angles formed using a protractor. Sum the angles and confirm that they add up to 1800.
The altitude or height of a triangle is the perpendicular distance from the vertex to the base.
Triangles are classified according to the magnitude of their angles or according to the length of their side. To learn more, Click here
Week 4)
Topic: Material and Their Common Uses (cont’d)
Contents:
- Uses of Ceramics
- Uses of Rubbers
Ceramics –
The basic material for the production of ceramics is clay, which is dug out of the ground. After the water is added, the mixture is shaken and sieved so that unwanted material, such as stones, is removed. When the clay has settled and drained it is allowed to dry until it is suitable to be worked on.
Clay can however be bought already prepared. Red clay contains iron oxide. It has a fine texture and is fired (baked) in kilns at temperatures between 9000C and 12000C. It is used for making earthenware utensils.
Grey clay has a small amount of iron oxide. It is fired at about 12000C and is biscuit coloured. It is used to make stoneware utensils.
China clay is obtained from kaolin and is white in colour. It has very fine particles and is used for delicate utensils. To learn more, Click here
Week 2)
Topic: Rescue Operation
Contents:
- Meaning of rescue operation
- Different aspects of rescue operation
- Steps involved in rescue operation
RESCUE OPERATION
This is the operations or organized procedures of a person or group of people to bring people or a person out of danger, attack, harm etc. Rescue comprises responsive operations that usually involve the saving of life, or prevention of injury during an incident or dangerous situation.
Tools used might include search and rescue dogs, mounted search and rescue horses, helicopters, the “jaws of life”, and other hydraulic cutting and spreading tools used to extricate individuals from wrecked vehicles. Rescue operations are sometimes supported by special vehicles such as fire departments or EMS heavy rescue vehicle. Rescue operations are carried out mostly by trained firemen, police, military, first aid or ambulance attendants. To learn more, Click here
Week 8)
Topic: Construction and Sketches
Outline:
- Construction of Triangles
Construction of Triangles
(A) To construct a triangle given the length of the three sides
i. Draw a horizontal line and mark off the base of the triangle AB.
ii. With centre A and a radius equal to the length of the side of the triangle, strike an arc.
iii. With centre B and a radius equal to the other side, strike another arc to cut the previous one at C.
iv. Join CA and CB to obtain the triangle ABC. To learn more, Click here
