### To count from 1 to 19 and match pictorial and abstract representations of these numbers

In this lesson, we will link the words in the counting sequence to pictorial and then abstract representations.

Skip navigation# Unit Overview: Numbers to 20

## Lessons:

### To count from 1 to 19 and match pictorial and abstract representations of these numbers

### To identify numbers to 20 by counting ten and then counting on

### To position numbers to 20 on a number line

### To identify one more and one less than a number within 20

### To compare numbers to 20

### To compare and order three numbers within 20

### To identify, complete and continue number patterns, adding and subtracting 1 or 2

### To find double and half within 20

### To understand even and odd as 'fair' and 'unfair' numbers

### To consolidate learning

10 lessons

In this lesson, we will link the words in the counting sequence to pictorial and then abstract representations.

In this lesson, we will see how a tens frame is used to count a group of ten and then count how many more there are to make a teen number.

In this lesson, we will position numbers on a number line in order and justify your decision.

In this lesson, we will see one more and one less represented in different ways and make links between them.

In this lesson, we will compare numbers to 20 using a tens frame and then use the language of comparison.

In this lesson, we will use the language of tens and ones to compare three numbers and order them on a number line.

In this lesson, we will identify number patterns on a number line and use the vocabulary 'increasing' and 'decreasing'.

In this lesson, we will double numbers by adding the same number to itself and halve even numbers by sharing equally between two groups.

In this lesson, we will investigate 'fair' numbers, understanding these as even numbers and investigate 'unfair' numbers, understanding these as odd numbers.

In this lesson, we will practise using and applying the important mathematical vocabulary and thinking that you have used throughout this unit.

Units in Maths

- Numbers to 10
- Addition and subtraction within 10
- Shape and patterns
- Numbers to 20
- Addition and subtraction within 20
- Time
- Exploring calculation strategies within 20
- Numbers to 50
- Addition and subtraction within 20 (comparison)
- Fractions
- Measures (1): Length and mass
- Numbers 50 to 100 and beyond
- Addition and subtraction (applying strategies)
- Money
- Multiplication and division
- Measures (2): Capacity and volume
- Addition and Subtraction
- Multiplication and money
- Numbers within 100
- Addition and subtraction of 2-digit numbers
- Addition and subtraction word problems
- Measures: Length
- Graphs
- Multiplication and division: 2, 5 and 10
- Time
- Fractions
- Addition and subtraction of 2-digit numbers (regrouping and adjusting)
- Money
- Faces, shapes and patterns; lines and turns
- Numbers within 1000
- Measures: Capacity and volume
- Measures: Mass
- Exploring calculation strategies
- Multiplication and division: 3 and 4
- Multiplication: equal and unequal groups
- The two times table

- 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