Part I Heuristic Approach

Unit 1 Systematic Listing

Unit 2 Act It Out

Unit 3 Look For Pattern I

Unit 4 Draw A Diagram I

Unit 5 Look For Pattern II

Unit 6 Simplify The Problem

Unit 7 Draw A Diagram II

Unit 8 Guess And Check

Part II Model Approach - Addition

Unit 9 Model Drawing - Addition

Unit 10 Word Problems - Addition I

Unit 11 Word Problems - Addition II

Unit 12 Word Problems - Addition III

Part III Model Approach - Subtraction

Unit 13 Model Drawing - Subtraction

Unit 14 Word Problems - Subtraction I

Unit 15 Word Problems - Subtraction II

Unit 16 Word Problems - Subtraction III

Part IV Model Approach - Multiplication

Unit 17 Model Drawing - Multiplication

Unit 18 Word Problems - Multiplication

Part V Model Approach - Division

Unit 19 Model Drawing - Division

Unit 20 Word Problems - Division I

Unit 21 Word Problems - Division II

Part VI Examination Revisions

Unit 22 Revision Paper I

Unit 23 Revision Paper II

Detailed Solutions and Answers

**Stickers For Model Activities

__i-Excel Heuristics and Model Approach Primary 2__

Part I Heuristic Approach

Unit 1 - Guess And Check

Unit 2 - Act It Out

Unit 3 - Draw A Diagram I

Unit 4 - Make A List

Unit 5 - Look For Pattern I

Unit 6 - Draw A Diagram II

Unit 7 - Draw A Diagram III

Unit 8 - Look For Pattern II

Part II Model Approach

Unit 9 - Addition I (Part-Whole Model)

Unit 10 - Addition II (Comparison Model)

Unit 11 - Subtraction I (Part-Whole Model)

Unit 12 - Subtraction II (Comparison Model)

Unit 13 - Multiplication I

Unit 14 - Multiplication II

Unit 15 - Division I

Unit 16 - Division II

Answer Key And Detailed Solutions

**Stickers For Model Activities

__i-Excel Heuristics and Model Approach Primary 3 __

Part I Problem Solving Heuristic Approach

Unit 1 - Act It Out

Unit 2 - Look For Patterns

Unit 3 - Work Backwards

Unit 4 - Guess And Check

Unit 5 - Draw A Diagram

Unit 6 - Simplify The Problem

Unit 7 - *Restate The Problem I

Unit 8 - *Use Before-After Concept

Unit 9 - Restate The Problem II

Part II Problem Solving Model Approach

Unit 10 - Draw A Model - Addition And Subtraction I

Unit 11 - Draw A Model - Multiplication

Unit 12 - Draw A Model - Division I

Unit 13 - Draw A Model - Division II

Unit 14 - Draw A Model - Four Operations I

Unit 15 - *Draw A Model - Four Operations ivision II

Unit 16 - *Draw A Model - Four Operations III

Answer Key And Detailed Solutions

Stickers For Model Activities

*More challenging problems specially for advanced pupils

__i-Excel Heuristics and Model Approach Primary 4__

Part I Heuristic Approach

Unit 1 Guess And Check

Unit 2 Simplify The Problem

Unit 3 Work Backwards

Unit 4 Look For Pattern

Unit 5 Draw A Diagram

Unit 6 Make A List

Unit 7 Test 1

Unit 8 *Challenge Yourself 1

Answer key 1

Part II Model Approach - Whole Numbers

Unit 9 Addition and Subtraction

Unit 10 Addition and Subtraction

Unit 11 Addition and Subtraction

Unit 12 Multiplication and Division

Unit 13 Multiplication and Division

Unit 14 Four Operations

Unit 15 Four Operations

Unit 16 Four Operations

Unit 17 Four Operations

Unit 18 Four Operations

Unit 19 Four Operations

Unit 20 Four Operations

Unit 21 Test 2

Unit 22 Test 3

Unit 23 *Challenge Yourself 2

Answer key 2

Part III Model Approach - Fractions

Unit 24 Addition and Subtraction

Unit 25 Addition and Subtraction

Unit 26 Multiplication and Division

Unit 27 Multiplication and Division

Unit 28 Multiplication and Division

Unit 29 Multiplication and Division

Unit 30 Multiplication and Division

Unit 31 Multiplication and Division

Unit 32 Four Operations

Unit 33 Four Operations

Unit 34 Test 4

Unit 35 Test 5

Unit 36 *Challenge Yourself 3

Answer key 3

Part VII Non-Routine Problems

Unit 37 *Challenge Yourself 4

Answer key 4

__i-Excel Heuristics and Model Approach Primary 5__

Part I Heuristic Approach

Unit 1 Simplify The Problem

Unit 2 Systematic Listing

Unit 3 Draw A Diagram

Unit 4 Look For Pattern

Unit 5 Guess And Check

Unit 6 Use Before-After Concept

Part II Model Approach - Whole Numbers

Unit 7 Whole Numbers 1

Unit 8 Whole Numbers 2

Unit 9 Whole Numbers 3

Unit 10 Whole Numbers 4

Unit 11 Whole Numbers 5

Part III Model Approach - Fractions

Unit 12 Fractions 1

Unit 13 Fractions 2

Unit 14 Fractions 3

Unit 15 Fractions 4

Unit 16 Fractions 5

Part IV Model Approach - Ratio

Unit 17 Ratio 1

Unit 18 Ratio 2

Unit 19 Ratio 3

Part V Model Approach - Decimals

Unit 20 Decimals 1

Unit 21 Decimals 2

Part VI Model Approach - Percentage

Unit 22 Percentage 1

Unit 23 Percentage 2

Unit 24 Percentage 3

Unit 25 Percentage 4

Unit 26 Percentage 5

Part VII Revision

Unit 27 Revision 1 Heuristic Approach

Unit 28 Revision 2 Model Approach

Unit 29 Revision 3 Mixed Challenging Problems

Detailed Solutions and Answers

__i-Excel Heuristics and Model Approach Primary 6__

Part I Heuristic Approach

Unit 1 Solve Part Of The Problem

Unit 2 Make A Supposition

Unit 3 Work Backwards

Unit 4 Restate The Problem In Another Way

Unit 5 Look For Pattern

Unit 6 Systematic Listing

Unit 7 Use Before-After Concept (Ratio)

Unit 8 Draw A Diagram (Speed)

Part II Model Approach - Ratio And Proportion

Unit 9 Ratio And Proportion 1

Unit 10 Ratio And Proportion 2

Unit 11 Ratio And Proportion 3

Unit 12 Ratio And Proportion 4

Part III Model Approach - Percentage

Unit 13 Percentage 1

Unit 14 Percentage 2

Unit 15 Percentage 3

Unit 16 Percentage 4

Part IV Model Approach - Speed

Unit 17 Speed 1

Unit 18 Speed 2

Unit 19 Speed 3

Part V Examination Practice

Unit 20 Examination Practice

Detailed Solutions and Answers