# Third Term JSS3 Mathematics Lesson Note

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## Description

This lesson note covers the following topic for JSS3 Third Term Mathematics

1. Revision of First term’s work
2. Methods of solving simultaneous Linear Equations in one or Two Variables Elimination, Substitution and Graphical Methods
1. Methods of solving simultaneous Equation. Application of Linear Equation Graphical Method continued
1. Statistics II – Application of measure of central tendency on relevant current issues. Data collection from info on drug Abuse, voters Register, Producers (workers), consumers (children, aged etc) Importance of data on drug.  Abuse, HIV patients, Voters Register, Producers, consumers etc The use of the statistical tools such as measures of central tendency in Drug abuse, voting and other related activities.
1. Variation – Concept and meaning. Types of variation with examples Direct, Inverse, Joint, and Partial.
1. Variation (continued)

Joint and Partial Variation on simple exercises

More exercise in the various types of variation

1. Revision
2. Trigonometric ratio of angles

Sine, cosine, tangent of acute angles

Application of trigonometrically ratios to solve problems on angles and sides of a

1. Angles of elevation and depression

Clinometers to measure distances.

1. Bearing and Distances.

Concept of bearing and distances

Taking of bearing

Instrumental for taking bearing

Scale drawing

11 – 13                        Revision & Examination

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