# Mathematics Lesson Notes SS1 First Term

SCHEME OF WORK

Week 1 – Mensuration

Week 2 – Volumes of frustums of cone, rectangular-based pyramid and other pyramids

Week 3 – Geometrical construction

Week 4 – Triangle: Drawing and bisection of a line segment, construction and bisection of angles

Week 5 – Construction: Construction of quadrilateral polygon, construction of equilateral triangle locus of moving points.

Week 6 – Deductive proof: Sum of angles of a triangle revision of angles on parallel line cut by a transversal line.

# Week 9 – Mean deviation, variance and standard deviation

Below are the 2022 complete SS1 Mathematics First Term Lesson Note

## Lesson Note on Mathematics SS1 First term

Week 1 – Mensuration

# Overview – What is mensuration? Mensuration is a branch of Mathematics that deals with the measurement of areas and volumes of various geometrical figures. This week, we shall learn about mensuration. We shall also learn about figures such as cubes, cuboids, cones and triangular prism as well as their volumes and areas. To learn more, Click here…

Week 2 – Volumes of Frustums of Cone, Rectangular-Based Pyramid and other Pyramids

# Overview – Having been introduced to the concept of mensuration, this week, we shall learn about the shapes such as the cone, oblique prism, oblique cylinder and pyramids. We shall also learn how to prove that the sum of the angles in a triangle is 180 degrees. To learn more, Click here…

Week 3 – Geometrical Construction

# Overview – Geometry is the branch of Mathematics that deals with the study of shapes, sizes, angles and the dimensions of objects, their spatial relationships and their properties. The week, we shall learn about geometrical construction. We shall learn how to construct basic shapes, lines and angles.

Week 4 – Triangle: Drawing and Bisection of Line Segment, Construction and Bisection of Angles

# Overview – Having being introduced to geometry, this week, we shall learn how to draw and bisect line segment. Bisection means to divide the line segment in two equal parts. We shall also learn how to construct and bisect angles.

Week 5 – Construction: Construction of Quadrilateral Polygon, Construction of Equilateral Triangle Locus of Moving Points.

# Overview – A quadrilateral polygon is a polygon with four sides, four vertices and four angles. Its four angles make up 360°. Equilateral triangle is a type of triangle with all its sides equal in length. It is also called an equiangular triangle because its angles are equal (60°). This week, we shall learn about the construction of shapes such as rectangle, kite, quadrilateral and equilateral triangle.

Week 6 – Deductive Proof: Sum of Angles of a Triangle Revision of Angles on Parallel Line Cut by a Transversal Line.