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# Tibberton

CP School & Early Years
Admissions DFE Tibberton early years Tibberton village

# Rainbow Maths

RAINBOW Maths

We have started Rainbow Maths at the beginning of Term 2, so again we aim to continue to develop it over the academic year. The purpose of Rainbow maths is to improve the children’s rapid recall of the four operations (+ - x ÷) when applied to basic mathematical questions.

The intention is that all classes will complete their Rainbow maths straight after lunch every day.

Everyone starts at the lowest part of the scale. When a child can successfully answer all questions within the timescale with no more than the accepted number of mistakes, every day for a week, then they can move up a colour. When they get to the end of the stages they can either go on to the next group of stages or restart depending on the focus of learning (addition, subtraction, multiplication, division).

 Elements stages Rainbow stages Award stages Addition and subtraction Multiplication and division Division and decimals Fire +  - Red x Bronze ÷ x Air +  - Orange x Silver ÷ Earth +  - Yellow x Gold ÷ decimals Water +  - Green x Platinum ÷ decimals Blue x Kryptonite converting decimals Indigo ÷ Violet ÷

To give additional support to them at home would be really useful as the Challenge is based around those key areas of maths where regular practice embeds facts that we use all the time: equipping them with skills for life.

At KS1: knowing 1 more/less; 10 more/less; knowing number bonds to 10 e.g. 4 + 6, 8 + 2 and then bonds to 20: 4 + 16, 8 + 12, and understanding that when adding you put the big number in your head and then count on (using fingers is fine). They then move on to partitioning numbers (taking them apart and putting them back together again) e.g. 23 + 12, is the same as 20 + 10 and 3 + 2, this method speeds up mental calculation. When they have these methods secure they can begin to apply them to the inverse – subtraction.

Regular practice at home of chanting times tables (for KS1 2, 5. & 10 and all tables for KS2) e.g. 3 X 6 = 18; chanting multiples: 6, 12, 18 etc. and their associated division facts (factors) e.g. how many 6's in 18; would really help the children secure their understanding of how these work. Knowing how numbers change when decimals are multiplied and divided is also helpful – understanding the place value of a number – i.e.:

 Thousands Hundreds Tens Units · tenths hundredths thousandths 3 6 4 7 · 9 8 2

When multiplying by 10, 100, or 1000 the numbers move the corresponding number of places as the 0’s to the left; when dividing they move to the right.

Regular practice really is the key – the odd 5 minutes when walking to school, sitting in the car or round the dinner table – you will be amazed at the difference it can make!

 Year Group Number of Questions Time Allowed Mistakes allowed over the course of the week Y 5 & 6 50 5 5 Y 3 & 4 25 3 3 Y 2 20 5 2 Y 1 10 5 1