JSS3 Mathematics Lesson NotesFirst Term1. Binary Number System 2. Using a Computer to do Simple Mathematical Calculations3. Translation of Word Problems into Numerical Expressions4. Expressions Involving Brackets and Fractions5. Direct and Inverse Proportion6. Application of Direct and Inverse Proportions7. Compound Interest8. Addition of Two or Three 3-Digit Binary Numbers9. Subtraction of Two or Three 3-Digit Binary Numbers10. Multiplication of Two 2-Digit Binary Numbers11. Division of Two to 3-Digit Binary Numbers12. Identifying Rational and Non – Rational Numbers 13. Variation Problems on Direct, Indirect, Joint and Partial 14. Factorization of Expressions15. Word Problems Involving Factorization16. Simple Equations 17. Word Problems Leading to Simple Equations Involving Fractions18. Change of Subject of Formulas Involving Addition, Multiplication, and RootsSecond Term1. Elimination Method 2. Substitution Method3. Graphical Method4. Compilation of Table of Values5. Similar Shapes - Identification of Plane Shapes6. Enlargements and Scale Factor - Enlarge Figures using Scale Factors7. Calculate Lengths, Areas, and Volume of Similar Figures8. Area of Triangles9. Area of Parallelograms10. Area of Trapeziums (Trapezoids in the US)11. Area of Circles12. Area of Sectors13. Word Problems Involving Areas of Plane Figures14. Quantitative Aptitude Problems on Areas of Plane Figures15. Definition of Trigonometric Ratios16. Application to Angle of Elevation and Depression17. Use clinometers to demonstrate and estimate or calculate distances. 18. Measure of Central Tendency19. Median20. Mode21. Mean22. Range