PRIMARY 6 MATHS INFORMATION EVENING Mrs Greig Miss
- Slides: 20
PRIMARY 6 MATHS INFORMATION EVENING Mrs Greig Miss Scott Miss Coles
AIMS Teach children to calculate mentally Accurately Flexibly Efficiently
THUMBS UP ���� Thumbs up for 1 solution Additional finger for additional solutions
WHAT IS 18 X 5 Try working it out without using the house sum (alogorithm) The important part is how it is worked out
HALF AND DOUBLE 9 9 9 x 10 5 5
PARTITION 10 x 5 and 8 x 5 10 5 8
BRIDGING AND ADJUSTING 20 x 5 subtract 2 x 5 20 5 2
USING FACTORS 2 x 9 x 5 9
OTHER USEFUL VISUAL TOOLS Blank number lines Ordering fractions on a line Counting on and back
FRACTIONS OVERVIEW q Fraction of a shape q Sharing an amount equally q Equivalent fractions q Fractions on a number line q Compare and order fractions q Unit fraction of an amount q Fraction of an amount q Simplifying fractions
EQUIVALENT FRACTIONS
FRACTIONS ON A NUMBER LINE
COMPARE AND ORDER FRACTIONS
FRACTION OF AN AMOUNT What is 1/3 of 15? What is 3/5 of 30? Divide by the denominator and multiply by the numerator.
SIMPLIFYING FRACTIONS Divide the following fractions by 2, to simplify each one: a. 6/8 b. 2/12 c. 10/14 Divide the following fractions by 3, to simplify each one: a. 3/6 b. 6/9 c. 9/12 Simplify as far as possible: a. 22/33 b. 40/60 c. 30/45
DECIMAL OVERVIEW q Decimal place value q. Rounding decimals q. Adding and subtracting decimals q. Multiplying and dividing decimals q. Recognising the links between fractions, decimals & percentages
PLACE VALUE Explain the link between a digit, its place and its value. (Partitioning)
ROUNDING DECIMALS Rounding to the nearest whole number Rounding to 1 Decimal Place 3. 17 Lies between 3. 1 and 3. 2 It is closer to 3. 2 3. 15 3. 2
MULTIPLYING AND DIVIDING DECIMALS “Just add zeros!!!!” Simple rules: If you multiply by 10 => Move all the figures ONE place LEFT. If you multiply by 100, => Move all the figures TWO places LEFT. If you multiply by 1000, => Move all the figures THREE places LEFT. 4 3 7
RECOGNISING THE LINKS BETWEEN FRACTION, DECIMALS AND PERCENTAGES
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