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Teaching Some Selected Topics of
Grade 9 Mathematics
Based on National Mathematics Curriculum
Ethiopian Teachers Association (ETA)
March 2012 GC. /2004 EC.

Contents

Introduction
Unit 1: The Real Number System
Topic 1: Expressing Repeating Decimals as Fractions
Topic 2: Locating Irrational Numbers on a Number Line
Topic 3: Simplification of Radicals
Topic 4: Rationalization
Unit 2: Solution of Equations
Topic 1: Equations Involving Exponents
Topic 2: Equations Involving Radicals
Topic 3:Equations Involving Absolute Values
Topic 4: Factoring Trinomials
Topic 5: Solving Quadratic Equations using Completing the Square
Topic 6: Application of Viete’s Theorem
Unit 3: Sets
Topic 1: Venn diagrams and Sets
Unit 4: Relations and Functions
Topic 1: Sketching Relations with Two or More Inequalities
Topic 2: Writing Domain and Range of Relations from their Graphs
Topic 3: Domain and Range of Functions
Topic 4: Graphs of Quadratic Functions
 Unit 5: Geometry and Measurement
Topic 1: Triangle Similarity Theorems
Topic 2: Angle Properties of Circles
Topic 3: Surface Area and Volume of Cylinders
Unit 6: Statistics and Probability
Topic 1: Variance and Standard Deviation
Topic 2: Properties of Variance & Standard Deviation
Topic 3: Probability of Events