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3 Mobile Wifi – 707E Password: 50046040
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Skill breakdown: 58 less than 233
Less than is subtraction Regroup (30&3, 20&13) Partition Place Value 8-3 not the same as 3-8 Visualising quantity Inverse Number facts
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297 350 846
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297 350 846
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30 100 200 10 28 52 16
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30 100 200 10 28 52 16
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Variation 1 4 of 12 = 3 4 of 12 = 3 4 of 24 = 3 8 of 24 = = = =
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Variation There are 20 children. There are two more girls than boys. How many girls?
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Variation There are 20 children. There are two more girls than boys. How many girls? There are 20 children. There are four more girls than boys. How many girls?
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Variation There are 20 children. There are two more girls than boys. How many girls? There are 20 children. There are four more girls than boys. How many girls? There are 50 children. There are four more girls than boys. How many girls?
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5 × ___ = 30 - ___
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5 × 1 = 30 – 25 5 × 2 = 30 – 20 5 × 3 = 30 – 15
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3.5 × 10 mirror
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Factors and Multiples Game
First move: even, below 20. Pick factor/multiple of previous number Win if your opponent can’t go 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
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Factors and Multiples Game
First move: even, below 20. Pick factor/multiple of previous number Win if your opponent can’t go 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
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Factors and Multiples Game
First move: even, below 20. Pick factor/multiple of previous number Win if your opponent can’t go 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
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Classroom Management:
Assessment Reasoning at point of answer Video scaffolds Praise Plenary
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‘7 × 5 is equal to 6 × 6 because both pairs of numbers add up to make 12.’
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