# Unit Overview: Quadratic expressions (9.9)

## Lessons:

12 lessons

### Recognising linear and non-linear graphs

In this lesson, we will learn to recognise the difference between linear and nonlinear graphs.

• 1 Quiz
• 21m Video
• Presentation(PPT)
• Worksheet
• Transcript

In this lesson, we will learn about the shape of a quadratic graph and begin plotting graphs of quadratic equations.

• 2 Quizzes
• 19m Video
• Presentation(PPT)
• Worksheet
• Transcript

In this lesson, we will identify the features of quadratic graphs. We will also practice plotting quadratic graphs.

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

In this lesson, we will explore different situations that can be modelled by quadratics.

• 2 Quizzes
• 17m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Maximum and minimum area

In this lesson, we will explore how we can use quadratic graphs to solve maximum and minimum problems.

• 2 Quizzes
• 17m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Distributive property

In this lesson, we will learn more about applying the distributive property of multiplication with variables. We will use area models to visualise the process.

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

### Expanding double brackets

In this lesson, we will learn more about expanding double brackets. We will use area models to visualise the process.

• 2 Quizzes
• 12m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Difference of two squares

In this lesson, we will learn about the difference of two squares. We will investigate the pattern of results when considering multiplying out brackets of the general form (x+a)(x-a).

• 2 Quizzes
• 16m Video
• Presentation(PPT)
• Worksheet
• Transcript

In this lesson, we will learn how we can factorise quadratics using an array.

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

In this lesson, we will further develop your ability to factorise quadratics by spotting factors of terms.

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

In this lesson, we will learn how to sketch quadratics using intercepts of the y and x axis.

• 2 Quizzes
• 20m Video
• Presentation(PPT)
• Worksheet
• Transcript