### Numbers to 30

In this lesson, we will explore numbers to 30, looking at how they are written and what that quantity looks like. We will also consider how grouping in 10s will make counting easier.

Skip navigation# Unit Overview: Numbers beyond 20

## Lessons:

### Numbers to 30

### Numbers to 40

### Numbers to 50

### One more and one less of numbers beyond 20

### Sharing numbers beyond 20

5 lessons

In this lesson, we will explore numbers to 30, looking at how they are written and what that quantity looks like. We will also consider how grouping in 10s will make counting easier.

In this lesson, we will explore numbers to 40, looking at how they are written and what that quantity looks like. We will also consider how grouping in 10s will make counting easier.

In this lesson, we will explore numbers to 50, looking at how they are written and what that quantity looks like. We will also try estimating some quantities for numbers beyond 20.

In this lesson, we will look again at numbers beyond twenty, and using a numberline or representation that uses tens and ones, practise saying one more and one less.

In this lesson, we will work with numbers beyond twenty as we practise sharing into groups, and then checking to see if the parts are equal.

Units in Maths

- Early Mathematical Experiences
- Pattern and Early Number
- Numbers within 6
- Addition and subtraction within 6
- Measures
- Shape and sorting
- Calendar and Time
- Numbers within 10
- Addition and subtraction within 10
- Numbers within 15
- Grouping and Sharing
- Numbers within 20
- Doubling and halving
- Shape and pattern
- Addition and subtraction within 20
- Money
- Measures
- Depth of numbers within 20
- Numbers beyond 20

- Doubling and halving
- Addition and subtraction within 10
- Exploring calculation strategies within 20
- Money
- Measures
- 2-D shape, perimeter and area
- Numbers to 50
- Manipulating and calculating with fractions
- Fractions
- Fractions and decimals
- Conceptualising and comparing fractions
- Numbers 50 to 100 and beyond
- Reasoning with large whole numbers
- Converting units of measure
- Numbers to 10
- Solving measure and money problems
- Addition and subtraction within 20
- Addition and subtraction (applying strategies)
- Numbers within 1000
- Place value
- Problem solving with integer addition and subtraction
- Volume
- Positive and negative numbers
- Numbers within 10
- Numbers within 15
- Addition and subtraction within 20
- Measures (1): Length and mass
- Measures (2): Capacity and volume
- Addition and subtraction of 2-digit numbers
- Fractions
- Multiplication and division
- Multiplication and division
- Axioms and arrays
- Prime factor decomposition
- Indices and standard form
- Time
- Addition and subtraction of 2-digit numbers (regrouping and adjusting)
- Area and perimeter
- Numbers and numerals
- Percentages
- Fractions
- Measures: Length
- Numbers beyond 20
- Time
- Securing multiplication facts
- Addition and subtraction within 10
- Measures: Mass
- Number sense and exploring calculation strategies
- Addition and subtraction
- Securing multiplication and division
- Position and Direction
- Pattern and Early Number
- Addition and subtraction word problems
- Fractions
- Decimals
- Multiplication and division: 3 and 4
- Multiplication and division: 2, 5 and 10
- Measures: Capacity and volume
- Addition and subtraction
- Extending calculation strategies and additive reasoning
- Deriving multiplication and division facts
- Calculating with whole numbers and decimals
- Integers & Decimals
- Multiplication and division
- Grouping and Sharing
- Surds and trigonometry
- Numbers within 6
- Numbers within 100
- Exploring calculation strategies
- Time
- Exploring calculation strategies and place value
- Multiplication and division
- Factors and multiples
- Graphs
- Graphs
- Reasoning with 4-digit numbers
- Reasoning with patterns and sequences
- Calculation problems
- Numbers within 20
- Money
- Multiplication and division
- Fractions, decimals and percentages
- Decimals and measures
- Early Mathematical Experiences
- Order of operations
- Depth of numbers within 20
- Numbers to 20
- Addition and subtraction within 20 (comparison)
- Addition and subtraction within 6
- Accuracy and estimation
- Money
- Length and perimeter
- Fractions
- Fractions
- Problem solving with whole numbers and decimals