Mastering Directed Number
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Introduction
1.0 Introduction
Zero Pairs and Addition
1.1 Additive inverses (Zero pairs)
1.2 Field Axioms for Addition
1.3 Zero Pairs — Random Scatter
1.3b TASK: Zero Pairs — Random Scatter
1.4 Modeling additions — A consistent approach
1.5 TASK: Addition — Some to try
1.6 Moving to efficient methods
1.6b TASK — Moving to efficient methods
1.7 Generalising addition
1.7b TASK — Generalising addition
1.8a TASK: Zero Pairs — Behaving Mathematically
1.8b TASK: Zero Pairs — Behaving Mathematically
Subtraction with Directed number
2.1 The difference between minus and negative
2.2 Subtraction as shorthand notation
2.2b TASK: Subtraction as a shorthand notation
2.3 A scaffold for subtraction
2.3b A scaffold for subtraction
2.4 TASK: Subtraction — Some to try
2.5 Variation — Match up the calculations
2.5b TASK: Variation — Match up the calculations
2.6 TASK: Equivalent Subtractions and Additions
2.7 TASK: Efficient mental methods
2.8 TASK: Generalising subtraction
2.9 TASK: The two 2's challenge
2.10 A flawed model for subtraction
2.10b A flawed model for subtraction
Summary
3.0 Summary
3.1 Directed Number — All Slides
Products
Course
Mastering Directed Number
Mastering Directed Number
Mastering Directed Number
Buy now
Learn more
Introduction
1.0 Introduction
Zero Pairs and Addition
1.1 Additive inverses (Zero pairs)
1.2 Field Axioms for Addition
1.3 Zero Pairs — Random Scatter
1.3b TASK: Zero Pairs — Random Scatter
1.4 Modeling additions — A consistent approach
1.5 TASK: Addition — Some to try
1.6 Moving to efficient methods
1.6b TASK — Moving to efficient methods
1.7 Generalising addition
1.7b TASK — Generalising addition
1.8a TASK: Zero Pairs — Behaving Mathematically
1.8b TASK: Zero Pairs — Behaving Mathematically
Subtraction with Directed number
2.1 The difference between minus and negative
2.2 Subtraction as shorthand notation
2.2b TASK: Subtraction as a shorthand notation
2.3 A scaffold for subtraction
2.3b A scaffold for subtraction
2.4 TASK: Subtraction — Some to try
2.5 Variation — Match up the calculations
2.5b TASK: Variation — Match up the calculations
2.6 TASK: Equivalent Subtractions and Additions
2.7 TASK: Efficient mental methods
2.8 TASK: Generalising subtraction
2.9 TASK: The two 2's challenge
2.10 A flawed model for subtraction
2.10b A flawed model for subtraction
Summary
3.0 Summary
3.1 Directed Number — All Slides
Learn more
Buy now
A complete guide to teaching addition and subtraction with directed number.
Introduction
1 Lesson
1.0 Introduction
Zero Pairs and Addition
12 Lessons
1.1 Additive inverses (Zero pairs)
1.2 Field Axioms for Addition
1.3 Zero Pairs — Random Scatter
1.3b TASK: Zero Pairs — Random Scatter
1.4 Modeling additions — A consistent approach
1.5 TASK: Addition — Some to try
1.6 Moving to efficient methods
1.6b TASK — Moving to efficient methods
1.7 Generalising addition
1.7b TASK — Generalising addition
1.8a TASK: Zero Pairs — Behaving Mathematically
1.8b TASK: Zero Pairs — Behaving Mathematically
Subtraction with Directed number
14 Lessons
2.1 The difference between minus and negative
2.2 Subtraction as shorthand notation
2.2b TASK: Subtraction as a shorthand notation
2.3 A scaffold for subtraction
2.3b A scaffold for subtraction
2.4 TASK: Subtraction — Some to try
2.5 Variation — Match up the calculations
2.5b TASK: Variation — Match up the calculations
2.6 TASK: Equivalent Subtractions and Additions
2.7 TASK: Efficient mental methods
2.8 TASK: Generalising subtraction
2.9 TASK: The two 2's challenge
2.10 A flawed model for subtraction
2.10b A flawed model for subtraction
Summary
2 Lessons
3.0 Summary
3.1 Directed Number — All Slides