Year 2 Knowledge Organiser Number & Place Value

Year 2 Knowledge Organiser – Number & Place Value Dienes Ordering Numbers Place Value Key Vocabulary Place Value 2 1 4 4 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 Part – Part -Whole

Year 2 Knowledge Organiser – Addition Concrete Method Number line Method Pictorial Method 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 Column Method

Year 2 Knowledge Organiser –Subtraction Number line Method Pictorial Method Concrete Method Key Vocabulary subtract Taking something away from a group or number of things minus Taking something away from a given value When subtracting the biggest number should come first. take away Taking something away from a group or number of things A number square or number line can be used to count backwards to solve subtraction less than This symbol means less than fewer Smaller quantity or amount When using the column method make sure each number has it’s own box and they are in the correct column. difference The result of subtracting one number from another When using the column method you should always take away the ones first and then the tens. Sticky Knowledge Column Method

Year 2 Knowledge Organiser – Multiplication 2x 5x 10x and Division Array Repeated Addition 2 x 5 10 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. 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 Groups 10 5 2

Year 2 Knowledge Organiser –Picture graphs A tally chart Key Vocabulary A picture graph Exam Question A key Sticky Knowledge tally Tally marks are a quick way of keeping track of numbers in groups of five I use a tally to make groups of five. Picture graph A picture graph uses symbols and pictures to represent data. A picture graph is used to represent information. Key A key on a pictograph tells us how many each picture stands for. Most popular The greatest amount. Least Popular The smallest amount. The key on a pictograph tells me what each picture stands for.

Year 2 Knowledge Organiser –Length Measuring in centimetres (cm) Measuring in metres (m) Comparing (Length) Exam Question Key Vocabulary Sticky Knowledge Long Long means of much length Short Short means of small length To measure small things, you use a ruler. Tall Measuring a specified distance from top to bottom To measure larger things, you use a meter stick. Length The distance between two ends of a thing. 100cm 1m Height How high something is. , and are used to compare different lengths.

Year 2 Knowledge Organiser –Shape 2D shapes Shape Properties 3D shapes Symmetry Sticky Knowledge edge Key Vocabulary Sides 2D shapes are flat. 3D shapes are solid objects. 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. Shapes can be grouped by size, colour, type and by how many sides they have. A net is a flattened 3D shape Patterns 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.

Year 2 Knowledge Organiser –Fractions Equivalent fraction Key Vocabulary Fraction Wall Clock hands Sticky Knowledge Numerator The top number in a fraction. I know ½ is the same as 2/4. Denominator The bottom number in a fraction. I can find and name a half as 1of 2 equal parts of an object, shape or quantity. Halves Something divided into 2 parts I can recognise, find and name a quarter as 1 of 4 equal parts. Thirds Something divided into 3 parts I can say the fraction of the shaded amounts in a shape. quarters Something divided into 4 parts. Three thirds 1 whole

Year 2 Knowledge Organiser –Time Day intervals Key Vocabulary Telling the time to 5 minutes Clock hands Sticky Knowledge There are 60 seconds in a minute 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. There are 24 hours in a day. Half hour A period of thirty minutes There are 7 days in 1 week. after Fifteen minutes past any hour. There are 60 minutes in an hour. There are 12 months in a year. There are 30 minutes in a half hour.

Year 2 Knowledge Organiser –Volume Comparing Volume Key Vocabulary Millilitres Litres Worded Problem Sticky Knowledge Volume Volume is how much liquid is in a container. I know that there are 1000ml in 1l. Capacity Capacity is the amount of liquid a container can hold. To compare volume, the containers need to be the same size. Full The total capacity. I can use and symbols to compare volume. Half Full Half of the capacity. You need to read a scale on a jug to identify the correct volume of liquid. Empty The least capacity.

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 tally chart A picture graph A key