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上传于：2016-03-22

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    188宝金博页面版: KENNET VALLEY PRIMARY SSCHOOL

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    内容提示： K ENNET V ALLEY PRIMARY SCHOOL Teaching of Calculation Agreement – Spring 2013 Foundation 2 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Mental methods for addition & subtraction ? Use of songs; practical activities that promote rote learning ? Recall number bonds to 10 ? Recognise that addition can be done in any order ? Recall number bonds to 20 and beyond ? Mentally add and subtract any single digit number with double digit numbers ? Mentally add and subtract double digit numbers ? Mentally add and subtract...

    文档格式：DOC | 页数：2 | 浏览次数：36 | 上传日期：2016-03-22 13:07:20 | 文档星级：
    K ENNET V ALLEY PRIMARY SCHOOL Teaching of Calculation Agreement – Spring 2013 Foundation 2 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Mental methods for addition & subtraction ? Use of songs; practical activities that promote rote learning ? Recall number bonds to 10 ? Recognise that addition can be done in any order ? Recall number bonds to 20 and beyond ? Mentally add and subtract any single digit number with double digit numbers ? Mentally add and subtract double digit numbers ? Mentally add and subtract a range of numbers ? Confidently add and subtract numbers mentally Written methods for addition & subtraction ? Recording one-to-one correspondence with objects including 1p coins ? Recording a number line 0 to 10, and use part of a number square, counting on ? Simple numbers sentences through drawings, and using digits to 10, and adding two digits and one digit. ? Recording using partitioning: 12 + 4 = 10 + 0 = 10 2 + 4 = 6 1 6 ? Finding out how many are left by counting, using practical situations and recording through drawing ? Using objects to combine two groups, or find the difference between two groups and then record as a number sentence ? Counting on and back using a number line or part of a 100 square ? Drawing a number line to add/subtract a two digit and one digit number, and recording as a number sentence ? Add a one digit number to a multiple of 10 ? Add one to any number ? Add two two digit numbers together, and record these as number sentences. ? ‘Take Away’ one digit from one digit; one digit from two digits, using a number line, then linear recording: 9 – 7 = 2 24 – 8 = 16 ? Using partitioning to add/subtract two two digit numbers: 24 + 12 = 20+10 + 4+2 = 30 + 6 = 36 Then 20 + 4 10 + 2 30 + 6 ? Formal column methods: T U 22 55 77 ? Then including bridging the tens (carrying)etc: H T U 3 6 7 2 2 8 5 9 5 1 ? Doubling a two digit number, using partitioning: 62 / \ 120 + 4 = 124 ? Beginning to use inverse operations 17 + 8 = 2525 - 8 = 17? Subtraction of two and three digit numbers, with exchange eg T U 8 9 4 -3 6 5 8 ? Using brackets to indicate which part of the calculation is completed first: (13 + 72) + 16 = 85 + 16 = 104 ? Confidence in using inverse operations: If ... 53 + 21 = 74 then 74 – 21 = 53 and 74 – 53 = 21 ? Column addition with one decimal place ? Subtraction through addition: H T U 4 2 7 1 8 5 + 5 = 190 +1 0 = 200 +2 0 0 = 400 +2 7 = 427 2 4 2 ? Using negative numbers on a number line ? Addition and subtraction of negative numbers in context ? Column subtraction with decimals to two decimal places, including money and measures ? Use inverse to check answers ? Consolidate efficient written methods of addition and subtraction for whole numbers and decimal fractions ? Appropriate use of brackets in addition and subtraction

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