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# Unit Overview: Positive and negative numbers

## Lessons:

12 lessons

### Negative numbers in context

In this lesson, we will interpret negative numbers in a variety of contexts and explore movement on an 'extended' number line.

• 1 Quiz
• 14m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Order and absolute value

In this lesson, we will learn to interpret the absolute value of a number and understand how to order negative numbers using inequality notation.

• 2 Quizzes
• 15m Video
• Presentation(PPT)
• Worksheet
• Transcript

In this lesson, we will be able to model addition of a positive number as a translation on the number line and use this model to develop strategies for addition.

• 2 Quizzes
• 14m Video
• Presentation(PPT)
• Worksheet

In this lesson, we will learn how to model addition of a negative number as a translation on the number line and explore what happens when two additive inverses are added together.

• 2 Quizzes
• 11m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Subtracting positive numbers

In this lesson, we will explore the relationship between subtracting positive numbers and adding additive inverses.

• 2 Quizzes
• 15m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Subtracting negative Numbers

In this lesson, we will explore subtracting negative numbers as the addition of the additive inverse.

• 2 Quizzes
• 13m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Multiplication as scaling

In this lesson, we will explore multiplication involving at least one positive number and learn how it is possible to visualise multiplication as a stretch by a scale factor.

• 2 Quizzes
• 15m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Negative scale factors

In this lesson, we will learn about negative scale factors and explore the commutativity of multiplication.

• 2 Quizzes
• 13m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Further multiplication

In this lesson, we will investigate how to find the product of two negative numbers.

• 2 Quizzes
• 14m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Division

In this lesson, we will explore a model for division involving counting backwards and analysing a number line.

• 2 Quizzes
• 14m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Further division

In this lesson, we will derive further division facts using 'fact families'.

• 2 Quizzes
• 14m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Axioms and negative numbers

In this lesson, we will practise negative number calculations, linking them to axioms like commutativity and associativity.

• 2 Quizzes
• 24m Video
• Presentation(PPT)
• Worksheet
• Transcript