Welcome to Maths in Year 2 1 What do we teach in Maths? The Year 2 Maths Curriculum covers: Number Place Value Addition Subtraction Multiplication Division Fractions Measurement Geometry Estimating and measuring Shape Time Position and Money direction Statistics Charts Graphs Diagrams 2 Place Value Place value is of fundamental importance to children's understanding of maths and without a solid grasp of it, children will find it very difficult to move on. 3 Place Value - Each digit in its right place gives a number its value. 4 Place value - Partitioning Separating a number into tens and ones 75 70 5 70 + 5 = 75 5 Addition - The Hundred Square Jumping down in 10s and jumping sideways in ones 6 Addition - with a confident understanding of place value, children can group tens and units for addition 35 + 24 = 59 30 5 20 4 30 + 20 + 5 + 4 = 59 7 Adding on a numberline In year 2 we progress to a blank number line Adding on a blank numberline 1. Write your number sentence and draw BNL. 2. Put the bigger number first. 3. Partition the smaller number. 4. Add the tens and the units. 5. Write your landing numbers. 6. Complete your number sentence. 35 + 24 = 4 20 + 10 35 45 + 10 + 4 55 59 Have a go: 42 + 25 8 Subtraction - using partitioning to group tens and units 85 - 24 = 61 80 5 20 4 80 - 20 = 60 5-4=1 60 + 1 = 61 9 Subtraction on a numberline Take away on a blank numberline 1. Write your number sentence and draw your BNL. 2. Put the bigger number at the end. 3. Partition the smaller number. 4. Take away the 10's and the units. 5. Write your landing numbers. 6. Complete your number sentence. 45 - 27 = 18 18 20 10 10 5 2 25 35 45 Have a go: 74 - 38 10 Multiplication - grouping sets of objects repeated addition 2 lots of 5 = 10 6 groups of 2 = 12 9 x 10 = 90 4 x 5 = 20 5 x 4 = 20 11 Multiplication - arrays (pictoral) 4 x 5 = 20 5 x 4 = 20 12 Multiplication - The Hairy Spider Method! 6 x 2 = 12 13 Multiplication - BNL 3x2=6 1. Write number sentence 2. Draw number line and put 0 at the beginning 3. Circle number of jumps and draw your jumps 4. Write in number you are adding each time 5. Write landing numbers 6. Complete the number sentence 0 +2 +2 +2 2 4 6 14 Division as sharing and grouping 9 3 = 15 Division - Hairy Spider Method! 12 3=4 16 Division - BNL - repeated subtraction 12 2 =6 1. Read the number sentence. 2. Draw number line and put the biggest number at the end. 3. Say what you are counting back in. 4. Write the jump and the landing number. 5. Repeat until you reach zero. 6. Count up the jumps and complete the number sentence. 2 0 2 2 2 2 4 6 2 2 8 10 12 17 Fractions of number Numbers can be split up into equal parts 18 Fractions of number Numbers can be split up into equal parts Halving numbers - The halving Tree 88 What is half of 8? What is half of 80? 40 + 4 = 44 19 Fractions of number Numbers can be split up into equal parts Halving numbers - The halving Tree 36 20 10 10 5 + 4 = 44 20 Fractions of number Numbers can be split up into equal parts Fractions of numbers - The Hairy Spider! 1 4 of 20 = 5 3 of 20 = 15 4 21 Children should be able to recognise a range of interchangeable vocabulary 22 Supporting Maths at Home Door Numbers – Odd & even numbers, place value Playing Board Games – Place value and ordering Baking – Weighing, capacity, reading scales Clocks & Time – Encourage children to wear a watch & tell the time Shopping & Working Out ‘Change‛- Word problems, +, -, x, ÷ Food for Counting & Fractions – Pasta shapes, pizza/cake fractions Purses & Wallets – Emptying your purse for children to count coins Rubik‛s Cubes, Puzzles & Toys – Get presents that challenge children 23 Online... Internet Activities Useful Websites www.ictgames.com National Curriculum - www.gov.uk www.kenttrustweb.org.uk - Education and Learning - The National Curriculum www.woodlands-junior.kent.sch.uk www.kidsmathgamesonline.com www.nationalnumeracy.org.uk www.bbc.co.uk www.familymathstoolkit.org.uk www.mathletics.co.uk 24
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