Post on 22-Sep-2020
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