# Unit: Expressions, equations and inequalities

## Lessons:

12 lessons

### Algebraic expressions

In this lesson you will be introduced to algebraic notation and learn how to evaluate and substitute into expressions.

### Collecting like terms

In this lesson you will learn to collect together like terms and manipulate linear expressions.

### Distributivity and expanding

In this lesson you will use the distributive property to expand brackets with linear expressions.

### Factorising expressions

In this lesson you will learn how to factorise basic linear expressions.

### Forming and exploring equations

In this lesson you will learn the concept of an equation and use models to form equations.

### Exploring equality

In this lesson you will form equations and explore how equality is preserved.

### Inequalities

In this lesson you will use models to form inequalities.

### Further inequalities

In this lesson you will learn how to form inequalities related to a known equation.

### Perimeter expressions

In this lesson you will learn how to form expressions using algebraic lengths and draw shapes given expressions for the perimeter.

### Perimeter inequalities

In this lesson you will learn how to establish inequalities from perimeter expressions.

### Counting strategies

In this lesson you will generalise counting strategies algebraically for repeating patterns.

### Growing tree patterns

In this lesson you will learn how to generalise counting strategies algebraically for different repeating patterns.