# JSS1- JSS3 MATHEMATICS SECOND TERM SCHEME OF WORK

Mathematics second term Scheme of work for Nigeria junior secondary school (JSS1 – JSS3) students.

**JSS1: Second Term’s Scheme of Work **

**Week 1: **APPROXIMATION

i. Obtaining approximate values for calculation involving four basic arithmetic processes (operations).

ii. Rounding off of numbers to the nearest 10, 100, 1000.

iii. Quantitative reasoning involving approximation.

**Week 2: **OPEN SENTENCES

i. Use of letters to represent numbers.

ii. Distinguishing between open and closed sentences.

iii. Supplying the missing numbers in open sentences from a set of given permissible substitutes.

**Week 3:** SIMPLIFYING ALGEBRAIC EXPRESSION

i. Identifying the coefficient of symbols or letters.

ii. Distinguishing algebraic expressions from non-algebraic expressions.

**Week 4:** SIMPLIFYING ALGEBRAIC EXPRESSION 2

i. Basic operation of addition, substraction, multiplication and division of algebraic symbols and terms.

ii. Collection of like terms.

**Week 5:** WORD PROBLEMS

i. Formation of word problems (simple cases).

ii. Word problems involving uses of symbols.

iii. Quantitative reasoning involving algebraic expressions.

**Week 6: **SIMPLE EQUATIONS IN ONE VARIABLE

i. Identifying simple equations in one variable.

ii. Examples of three types of equality – absolute, referential and conditional equality.

**Week 7:** DIRECTED NUMBERS

i. Addition and substraction of numbers using number line.

ii. Use of number line.

**Week 8: **BASIC PROPERTIES OF SOME COMMON THREE DIMENSIONAL FIGURES

i. Basic properties of cubes, cuboids, pyramids, cylinders, e.g., faces, vertices and edges.

**Week 9: **BASIC PROPERTIES OF SOME COMMON THREE DIMENSIONAL
DIMENSIONAL FIGURES 2

i. Sphere

ii. Cone

iii. Triangular prism, e.g., faces, vertices and edges

**Week 10: **PROPERTIES OF FIGURES

i. Rectangles

ii. Square

iii. Isosceles triangles

iv. Equivalent triangles

v. Circles

**Week 11/12:** Revision/Examination

**JSS2: Second Term’s Scheme of Work **

**Week 1: **EXPANSION OF ALGEBRAIC EXPRESSION

i. Expansion of the form a(b + c) = ab + ac

ii. Expansion of the form (a + b) (c + d) = ac + ad + bc + bd

iii. Quantitative reasoning involving expansion

**Week 2:** FACTORIZATION OF ALGEBRAIC EXPRESSION

i. Factorisation of the form ax + ay = a (x + y)

ii. Factorisation of the form abc + abd = ab (c + d)

**Week 3: **ALGEBRAIC FRACTION

i. Algebraic fraction with monomial denominators (addition, substraction, multiplication and division)

ii. Word problems leading to simple algebraic fractions

**Week 4: **SIMPLE EQUATIONS

i. Solving simple equations

ii. Word problems on simple equations.

**Week 5: **LINEAR INEQUALITIES IN ONE VARIABLE

i. Solution of linear inequalities

ii. Graphical representation of linear inequalities

iii. Word problems involving linear inequalities in one variable

**Week 6: **PLANES, SHAPES AND FIGURES

Properties of:

i. Parallelogram

ii. Rhombus

iii. Kite

**Week 7: **ANGLES IN A POLYGON

i. Revision of angles in a triangle

ii. Identification and naming of polygons (up to 10 sides)

iii. Sum of angles in a quadrilateral.

iv. The sum of interior angles in a polygon

**Week 8**: SCALE DRAWING

i. Drawing plane objects to scale

ii. Converting actual lengths to scale

iii. Calculation from scale drawing

iv. Combination of plane shapes to produce design

**Week 9: **GRAPHS

i. Revision of plotting of points on the Cartesian plane

ii. Solutions of linear equations in two variables using graphs

iii. Linear graphs from real life situations

**Week 10: **ANGLES OF ELEVATION AND DEPRESSION

i. Identifying angles of elevation and depression

ii. Distinguishing between angles of elevation and depression

iii. Measuring angles of elevation and depression

iv. Using angles of elevation and depression in calculating distances and heights

**Week 11/12:** Revision/Examination

**JSS3: Second Term’s Scheme of Work **

**Week 1:** CHANGE OF SUBJECT OF FORMULA

i. Changing subject in a formula

ii. Simplifying expression by substituting in formula

**Week 2:** COMPOUND INTEREST

i. Revision of simple interest

ii. Solving problems on compound interest

iii. Applying the use of compound interest in daily life activities

**Week 3:** VIEWS, PLANS AND SKETCHES

Drawing views and plans of common solids:

i. Cube and cuboids

ii. Cone

iii. Cylinder

iv. Sphere

v. Prism

**Week 4: **PROBABILITY

i. Define probability

ii. Use probability to estimate the outcomes of real-life problems involving chance

iii. Express probability as a fraction

iv. Determine the probability of events such as throwing a die, picking a ball from a bag etc.

**Week 5:** SIMILAR SHAPES

a. Identify similar figures:

i. Triangles

ii. Rectangles

iii. Squares

iv. Cubes

b. Identifying the presence of similar shapes in the environment

**Week 6: **ENLARGEMENT AND SCALE FACTOR

i. Meaning of enlargement and scale factor

ii. Enlargement shapes using scale factor

iii. Calculating and comparing lengths, areas and volumes of similar figures

iv. Quantitative reasoning involving similar shapes

**Week 7: **TRIGONOMETRY

i. Identify sine, cosine and tangent of an acute angle as ratios of sides of a right-angled triangle

ii. Using trigonometric ratio to solve practical problems

iii. Applying trigonometric ratios to solve problems

**Week 8: **SOLID SHAPES

Problems in measuration involving:

i. Volume of cylinders, cones.

ii. Surface areas of cylinder and cones.

**Week 9: **CONSTRUCTION

i. Bisecting of line segment

ii. Bisecting of angles

iii. Constructing simple shapes

**Week 10: **CONSTRUCTION 2

i. Construction of angles of various sizes: 90°, 60°, 40°, 30°

ii. Copying a given angle

iii. Constructing simple shapes

**Week 11/12**: Revision/Examination