# Primary/K-6: Number

Number Sense is a vital skill that your child must learn. While the numbers and their properties may become more sophisticated as your child grows, he/she will learn about numbers throughout his/her maths journey.

We know how fundamental learning about number is and that is why it is part of every step on our Rainbow Ladder Maths.

**"Number sense develops gradually over time as a result of exploring numbers, visualising them in a variety of contexts, and relating them in ways that are not limited by traditional algorithms"***Sood and Jitendra (2007)*

Here are all the topics covered in Number in our Rainbow Ladder Maths

### Red

- Counting Rhymes
- Counting
- Counting Groups
- More Than Less Than
- One More One Less Than
- Number Tracks
- Subitising
- Value of a Number
- Words for Numbers
- Number Bonds
- Estimating
- Ordinal Numbers
- Equals
- Conserving Numbers
- Addition
- Subtraction
- Numerals

### Orange

- Counting with Tens
- Counting Twenty to One Hundred
- Odds and Evens
- Number Bonds to 10
- Doubles
- Using Number Tracks
- Using Number Lines
- Subtraction (Take Away)
- Subtraction (Counting Back)
- Multiplication
- Division (Sharing)
- Division (Grouping)
- Money (using 1p)
- Halves
- Quarters
- Probability

### Yellow

- Counting (10 to 20)
- Counting from any Number
- Counting in Steps
- Number Bonds (Subtraction)
- Addition (Using Pictures)
- Subtraction (Counting On)
- Subtraction (Find the Difference)
- Subtraction (Using Pictures)
- Multiplication (Vocabulary)
- Multiplication Tables
- Division (Sharing)
- Division (Grouping)
- Grouping into 10s
- Counting to 20 with Bundles
- Tens and Ones
- Recording Addition
- Recording Subtraction
- Money (One to One Correspondence)
- Probability
- Empty Box Calculations
- Robots

### Green

- Counting in Steps
- Number Bonds to 20
- Addition using Numbers
- Subtraction using Images
- Subtraction using a Number Line
- Division with Remainders
- Halves and Quarters
- Fractions Smaller than Half
- Fractions of a Number
- Fractions and Division
- Percentages
- Hundreds, Tens and Units
- Recording Place Value
- Bar Model Maths
- Recording Multiplication
- Informal Recording of Division
- One to Many Correspondence
- Introducing 20p and 50p
- Probability

### Blue

- Counting in Steps of 25 and 50
- Addition (partitioning)
- Subtraction (Using Numbers)
- Multiplication and Division (Arrays)
- Parts of a Fraction
- Fractions of a Number
- Percentages
- Beyond the Decimal point
- Zero as a Placeholder
- Partitioning and Re-combining Numbers
- Naming Columns
- Using Metres for Place Value
- Rounding to the Nearest 10 and 100
- Informal Recording of Calculations
- Column Recording of Addition and Subtraction
- Recording Calculations using Bars
- Swapping Coins
- Probability
- Function Machines
- Making a Function Machine
- Function Games
- Making a function Game

### Purple

- Factors and Multiples
- Negative Integers
- Special Types of Numbers
- The Grid Method
- Divisibility
- Multiplication Word Problems
- Percentages 25% and 50%
- Comparing Fractions
- Writing Amounts Using Money
- Using a Place Value Grid
- Addition with Carrying
- Subtraction with Decomposition
- Division with Remainders
- Investigating Algebra
- Swapping Coins
- Probability
- Probability Scale

### Lilac

- Linking Fractions, Decimals and Percentages
- Percentages Beyond 100
- Multiplying and Dividing by 10 and 100
- Decimal Numbers
- Using the Place Value Grid
- Reading and Writing Large Numbers
- Formal Recording Addition and Subtraction
- Long Multiplication
- Long Division
- Napier’s Bones
- Budgeting
- Investigating Algebra
- Roman Numerals