Dienes

Key Vocabulary

partition Splitting numbers into

smaller units

compare To examine the difference between numbers

greater than More than

fewer than Less than

order To place numbers from the lowest to the highest

place value The value of a digit in a number

Year 2 Knowledge Organiser – Number & Place Value

Place Value

Place Value

Part – Part -Whole

2 4

1 4

Ordering Numbers

Key Vocabulary

add To bring two or more numbers (or things) together to make a new total

more To examine the difference between numbers

total A whole or complete amount

altogether The counting of groups of objects and finding how many in all

Equals Exactly the same amount or value or either side of the = sign

Year 2 Knowledge Organiser – Addition

Pictorial Method

Concrete Method

Column Method

Number line Method

Key Vocabulary

subtract Taking something away from a

group or number of things

minus Taking something away from a

given value

take

away

Taking something away from a

group or number of things

less than This symbol < means less than

fewer Smaller quantity or amount

difference The result of subtracting one

number from another

Year 2 Knowledge Organiser –Subtraction

Pictorial Method

Concrete Method

Column Method

Number line Method

Sticky Knowledge • When subtracting the biggest number should come

first.

• A number square or number line can be used to count backwards to solve subtraction

• When using the column method make sure each number has it’s own box and they are in the correct

column.

• When using the column method you should always take away the ones first and then the tens.

Key Vocabulary multiplication Multiplying one number by

another (times, lots of, multiplied

by)

Array A visual representation of

multiplication

Repeated

addition

Repetitively add the same

number again and again to find

the answer.

Division Sharing or grouping a number into

equal parts (share, divide, groups

of, how many in)

Share Divide a number or a number of

objects equally into a number of

piles.

Year 2 Knowledge Organiser – Multiplication 2x 5x 10x and Division

Array Repeated Addition

2 x 5 = 10

Groups

10 ÷ 5 = 2

Sticky Knowledge • 2 groups of 5 is the same as 5 x 2 =

• Arrays can be used to solve multiplication. For example 2 x 5 the array would have 2 rows of 5 or 5

rows of 2.

• When dividing the number must be shared out into equal groups.

• Multiplication and division are inverse operations and can be used to check your working out.

• When dividing make sure that the bigger number

comes first for example 12 ÷ 2 =

Key Vocabulary

tally Tally marks are a quick way of

keeping track of numbers in

groups of five

Picture graph A picture graph uses symbols

and pictures to

represent data.

Key A key on a pictograph tells us

how many each picture

stands for.

Most popular The greatest amount.

Least Popular The smallest amount.

Year 2 Knowledge Organiser –Picture graphs A picture graph A tally chart A key

Sticky Knowledge • I use a tally to make groups of five.

• A picture graph is used to represent information.

• The key on a pictograph tells me what each picture stands for.

Exam Question

Key Vocabulary

Long Long means of much length

Short Short means of small length

Tall Measuring a specified distance from top to bottom

Length The distance between two

ends of a thing.

Height How high something is.

Year 2 Knowledge Organiser –Length

Measuring in metres (m) Measuring in centimetres

(cm) Comparing (Length)

Exam Question

Sticky Knowledge • To measure small things, you use a ruler.

• To measure larger things, you use a

meter stick.

• 100cm = 1m

• <, > and = are used to compare

different lengths.

Key Vocabulary

Sides The measure from corner to corner.

Corners The pointed edges of the shapes.

Edge An edge is a line along which two faces come together.

Vertices A point where two or more curves, lines, or edges meet.

Line of

symmetry

The imaginary line that passes through the centre of the shape.

Year 2 Knowledge Organiser –Shape

Shape Properties 2D shapes 3D shapes

Sticky Knowledge • 2D shapes are flat. 3D shapes are solid objects.

• Shapes can be grouped by size, colour, type and by how many sides they have.

• A net is a flattened 3D shape

• A cube has the same properties as a cuboid.

• You can find a circle on cylinder and a triangle

on a pyramid.

• A football is a sphere, a shoe box is a cuboid

and a can of beans is a cylinder.

Symmetry

Patterns

edge

Key Vocabulary Numerator The top number in a fraction.

Denominator The bottom number in a fraction.

Halves Something divided into 2 parts

Thirds Something divided into 3 parts

quarters Something divided into 4 parts.

Year 2 Knowledge Organiser –Fractions Equivalent fraction Clock hands

Sticky Knowledge • I know ½ is the same as 2/4.

• I can find and name a half as 1of 2 equal parts

of an object, shape or quantity.

• I can recognise, find and name a quarter as 1

of 4 equal parts.

• I can say the fraction of the shaded amounts in

a shape.

• Three thirds = 1 whole

Fraction Wall

Key Vocabulary Analogue

Clock

A clock or a watch that has a face and hands to tell the time.

Digital clock A clock or a watch that uses only numbers to tell the time.

Duration The length of time something is.

Half hour A period of thirty minutes

after Fifteen minutes past any hour.

Year 2 Knowledge Organiser –Time Day intervals Clock hands

Sticky Knowledge

• There are 60 seconds in a minute

• There are 60 minutes in an hour.

• There are 24 hours in a day.

• There are 7 days in 1 week.

• There are 12 months in a year.

• There are 30 minutes in a half hour.

Telling the time to 5 minutes

Key Vocabulary Volume Volume is how much liquid is in a

container.

Capacity Capacity is the amount of liquid a container can hold.

Full The total capacity.

Half Full Half of the capacity.

Empty The least capacity.

Year 2 Knowledge Organiser –Volume Comparing Volume

Worded Problem

Sticky Knowledge

• I know that there are 1000ml in 1l.

• To compare volume, the containers need to be

the same size.

• I can use < and > symbols to compare volume.

• You need to read a scale on a jug to identify

the correct volume of liquid.

Millilitres

Litres