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**BASIC TECHNOLOGY LESSON NOTE FOR SECOND TERM JSS2**

This Lesson Note on **Basic Technology for JSS2 second term** covers weekly prepared lesson notes and each of them is rich in classwork, curriculum compliant, and syllabus based.

The lesson note is well-detailed with adequate evaluation to ensure that the learning objectives are achieved.

The scheme of work used in preparing the lesson note is based on the latest unified NERDC/UBE curriculum which is suitable for all schools in all the States in Nigeria.

Keep reading, you will find the Link to Download the complete lesson note in Ms-Word (Microsoft Word) Editable format below.

**Basic Technology Scheme of Work for JSS2 Second Term**

**WEEK 1:** REVISION/CIRCLES

**WEEK 2:** QUADRILATERALS

**WEEK 3:** POLYGONS

**WEEK 4:** AREA OF PLANE FIGURES

**WEEK 5:** AREA OF PLANE FIGURES(cont’d)

**WEEK 6:** WOODWORK MACHINES

**WEEK 7:** WOODWORK MACHINES (cont’d)

**WEEK 8:** METALWORK MACHINES

**WEEK 9:** METALWORK MACHINES (cont’d)

**WEEK 10:** FRICTION

**WEEK 11:** Revision

**WEEK 12:** Examination

**WEEK 13:** Examination

**REFERENCE BOOKS**

- MELROSE, Basic Science and Technology, Book 2
- NERDC, Basic Technology for JSS, Book 2

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**NOTE:** We have **Secondary School Lesson Notes for ALL SUBJECTS, JSS1 – SS3 (first, second and third term)**. To see the Available Subjects, place your order and** Download** any of the Lesson Notes, **CLICK HERE**.

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### BASIC TECHNOLOGY LESSON NOTE FOR SECOND TERM JSS2

Below are the Excerpts (Samples) of the **2022 Complete Basic Technology Lesson Notes for JSS2 Second Term**

**WEEK 1: REVISION/CIRCLES**

**CONTENT**

- DEFINITION OF CIRCLE

PARTS OF A CIRCLE

A circle is a plane figure bounded by a curved line called the circumference. All the points on the circumference of a circle are equidistant from a point called the centre.

**parts of a circle**

**Diameter**

The diameter is a straight line drawn through the centre of a circle and meeting the circumference at both ends.

**Radius**

The radius is a straight line drawn from the centre of a circle to any point on the circumference of the circle. The length of the radius is always used to draw the circle.

**Segment**

The segment is an area of the circle bounded by an arc and a straight line called the chord.** **

**Chord**

The chord is a straight line which joins any two given points on the circumference of a circle.

**Sector**

The sector is part of the circle bounded by two radii and an arc.

**Quadrant**

The quadrant is the part of the circle bounded by two radii which are at right angles to each other, bounded by an arc. The quadrant, as the name, is ¼ of the circle.

**Tangent**

The tangent is usually formed outside the circle. When a straight line touched is formed. However, that line must be right angle to a radius.

**EVALUATION**

- Draw a circle 30mm and show the different parts.
- Explain each part of a circle

**How to draw a circle given the radius**

**Procedure **

- Draw the centre lines horizontal and the other vertical, to intersect each other at E at 90
^{0}. - The point of intersection is the centre. With the compass at centre E, pick the given radius into the compasses.
- The point of intersection E, is the centre of the circle. Place the pinpoint of the compasses on the centre and swing the pencil round such that the pencil makes 360
^{0}to give the circle.

**How to construct a circle through a three points which are not on a straight line.**

**Procedure**

- Join the given points ABC with straight lines AB and BC.
- Draw the perpendicular bisector of the two lines AB and BC to intersect at point D.
- The point of intersection D is the centre of the circle. With point D as centre, set the pencil point of the compasses to any of the three given point A, B or C
- Swing your compass through the three points to produce the circle.

**How to construct a series of circles touching one another on the two converging lines **

**Procedure **

- Copy the given converging lines AB and AC.
- Bisect the angle between the converging lines BA and CA.
- Draw a line from A to pass through D.
- AE is the bisector, and the centre of the circles is located on the bisector.
- Draw the largest circle by placing the point of the compasses somewhere on the bisector and adjust the pencil point, until the required radius is obtained.
- Draw a tangent FG to the circle at point of intersection between the circumference of the circle and the bisector .
- Bisect the angle IJA
- Draw a line through point K to intersect main bisector AE at L.
- Note that point L is the centre for smaller circle.
- With centre L draw the smaller circle to touch the bigger circle tangentially.

**How to find centre of a circle **

**Procedure **

- Draw the given circle.
- Draw any two chords AB and AC.
- Bisect lines AB and AC. The bisecting lines will intersect at O.
- O is the centre of the circle.

**EVALUATION**

- Draw a circle of diameter 80 mm and determine its centre.
- Draw three circles of diameter 40mm touching each other

**READING ASSIGNMENT**

Read about QUADRILATERALS

**REFRENCE BOOK**

- MELROSE, Basic Science and Technology, book 2 page 81-83.
- NERDC, Basic technology for JSS book 2, page 52-56.

**WEEKEND ASSIGNMENT**

- The part of the circle that is bounded by an arc and a chord is A. segment

- sector C. diameter D. tangent.

- A straight line drawn through the centre, meeting the circumference at both ends is called A. sector B. radius C. diameter D. tangent
- A plane figure bounded by a curved line called circumference is called——-

- triangle B. circle C. quadrilaterals D. curved line
- Any straight line drawn across the circle, meeting the circumference at both ends is called A. chord B. tangent C. radius) D. diameter
- Which of the following can be used to draw a circle? A. protractor B. French curve C. compass D. template

**THEORY**

- Draw a circle of radius 35mm and divide it into 12 equal sizes.

Draw a circle and with shaded portion show (i) quadrant (ii) sector (iii) segment inside the circle

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If you want the **complete JSS2 Basic Technology Lesson Note for 1st, 2nd & 3rd term**,** CLICK HERE **to order and Download the notes now!

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**WEEK 2: QUADRILATERALS
**

**Overview:**

**CONTENT**

- Types of Quadrilaterals
- Construction of a rectangle given its diagonal and one side
- Construction of a rhombus given its side and a diagonal

- Construction of a rhomboid given its diagonal and one side.

QUADRILATERALS

Quadrilaterals are plane figures bounded by four straight lines. The sum of angles in a quadrilateral is 360^{0}. A straight line called… *To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.*

**WEEK 3: POLYGONS**

**Overview:**

**CONTENT**

- Definition
- Types of polygon
- Construction of different polygons

**What is a polygon?**

A polygon is a plane figure with five or more straight sides. A polygon can either be regular or irregular. A polygon is… *To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.*

**WEEK 4: AREA OF PLANE FIGURE**

**Overview:**

**INTTRODUCTION**

Plane figures are flat two-dimensional shapes. The can be made of straight lines, curved lines or both straight and curved lines. Examples of plane figures are: triangle, square, parallelogram, circle, rectangle etc.

**AREA OF PLANE FIGURES**

When a plane figure is drawn, it occupies a certain amount of space. At times, it is… **CLICK HERE**. You can also reach us on WhatsApp, **Click Here** to Chat with us.

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**Basic Technology Lesson Note for JSS2 (Second Term)**

**WEEK 5: AREA OF PLANE FIGURE (contd.)**

**Overview:**

Continuation of Week 4… **CLICK HERE**. You can also reach us on WhatsApp, **Click Here** to Chat with us.

**WEEK 6: WOODWORK MACHINES**

**Overview:**

**CONTENT**

- Introduction
- Woodwork Machines
- Circular Sawing Machine
- Surface Planing
- Thicknessing Machine
- Drill Press Machine
- Wood Lathe
- Band Saw

**INTRODUCTION **

Wood work machine are machines used for processing wood and making the wood ready for use. These machines are used for heavy woodwork operation and also for mass production.

In the past, nearly all-sawing operations were carried out by hand: a lot of energy was… **CLICK HERE**. You can also reach us on WhatsApp, **Click Here** to Chat with us.

**WEEK 7: WOODWORK MACHINES**

**Overview:**

Continuation of Week 6… **CLICK HERE**. You can also reach us on WhatsApp, **Click Here** to Chat with us.

**WEEK 8: METALWORK MACHINES**

**Overview:**

**CONTENT**

- Definition
- Shaping machine
- Planing machine
- Milling machine
- Grinding machine
- The drill press
- The lathe machine

**Definition **

Metalwork machines are machines used for metal work operations. The various types of metalwork machines include the following… **CLICK HERE**. You can also reach us on WhatsApp, **Click Here** to Chat with us.

**Basic Technology Lesson Note for JSS2 (Second Term)**

**WEEK 9: METALWORK MACHINES**

**Overview:**

Continuation of Week 8… **CLICK HERE**. You can also reach us on WhatsApp, **Click Here** to Chat with us.

**WEEK 10: FRICTION
**

**CONTENT**

- Meaning of Friction
- Advantages and Disadvantages of Friction
- How to Reduce Friction

**MEANING OF FRICTION**

When a body slides over the surface of another body, there is opposing force acting opposite to the direction of motion. This opposing force is called **FRICTION**. Friction is therefore the force that… **CLICK HERE**. You can also reach us on WhatsApp, **Click Here** to Chat with us.

**WEEK 11: Revision**

**WEEK 12: Examination**

**WEEK 13: Examination**

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If you want the **complete JSS2 Basic Technology Lesson Note** for 1st, 2nd & 3rd term,** CLICK HERE **to order and Download the notes now!

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**Why should you purchase Basic Technology Lesson Note for second term JSS2?**

The content of the lesson note is well-structured with adequate evaluation.

The lesson note will help the teacher know the topics to teach and how to teach them to achieve learning objectives.

It will instill confidence in the teacher when delivering the lesson note in the classroom and inspire respect from the students.

It will help you to avoid over-reliance on textbooks giving you more time to focus and teach.

For the students, it will serve as a study guide helping them to stay ahead of the class.

For Parents who wish to home-school their children, this is a helpful compendium.

**NOTE:** *The complete 2nd term Basic Technology Lesson Note for JSS2 is available, CLICK HERE to Download It. *

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