新加坡中二数学 2A（Discovering Math）

CONTENTS

Chapter 1  Proportion

1.1 Map Scale And Calculation Of Area （1-7）

A. Map Scale

B. Calculation of Area

1.2 Direct Proportion（8-17）

1.3 Inverse Proportion （17-31）

In A Nutshell （27-29）

Extend Your Learning Curve （30）

Write In Your Journal （31）

Chapter 2 Expansion And Factorisation Of Algebraic Exressions

2.1 Expansion Of Products Of Algebraic Expressions （32-39）

A. Product of Single Terms

B. Product of Two Expressions

2.2 Special Products Of Algebraic Expressions （40-44）

2.3 Factorisanion By Using Special Products Of Algebraic Expressions （45-49）

2.4 Factorisation of  ax²+ bx + c （50-62）

A. Algebra Tiles

B. x²+ bx + c

C. ax²+ bx + c

In A Nutshell

Extend Your Learning Curve

Write In Your Journal

Chapter 3   Simple Algebraic Fractions

3.1 Simplifying Simple Algebraic Fractions （63-66）

3.2 Multiplication And Division Of Algebraic Fractions （67-70）

3.3 Addition And Subtraction Of Algebraic Fractions （70-74）

3.4 More About Formulas （74-78）

3.5 Changing The Subject Of A Formula （79-85）

In A Nutshell

Extend Your Learning Curve

Write In Your Journal

Chapter 4 Congruence And Similarity

4.1 Meaning Of Congruence （86-100）

A. Congruent Figures

B. Congruence and Transformation

(Class Activity 90-100)

4.2 Similarity （101-110）

4.3 Scale Factors（111-115）

4.4 Scale Drawings （116-126）

In A Nutshell

Extend Your Learning Curve

Write In Your Journal

Chapter 5 Linear Equations In Two Unknowns

5.1 Meaning Of Linear Equations In Two Unknowns （127-133）

5.2 Solving Simultaneous Linear Equations In Two Unknowns By Graphical Method （134-140）

5.3 Solving Simultaneous Linear Equations In Two Unknowns By Substitution Method （141-144）

5.4 Solving Simultaneous Linear Equations In Two Unknowns By Elimination Method （144-148）

5.5 Solving Problems Using Simultaneous Equations （149-158）

In A Nutshell

Extend Your Learning Curve

Write In Your Journal

Chapter 6 Quadratic Functions And Equations

6.1 Idea of Functions and Linear Functions (159-171)

A. Idea of Functions

B. Linear Functions

6.2 Graphs Of Quadratic Functions (172-183)

A. Graph of y = ax²+ bx + c, where a > 0

B. Graph of y = ax²+ bx + c, where a < 0

6.3 Solving Quadratic Equations By Factorisation (183-187)

6.4 Applications Of Quadratic Equations (188-202)

In A Nutshell (192-194)

Extend Your Learning Curve (195)

Write InYour Journal  (196)

Problem-Solving Processes And Heuristics (197-202)

Answers (203-211)