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Year 4 Term 5
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Key Concepts – Number – Number and place value, decimals and money
- When a number is made ten times bigger, it moves to the left on a place value chart
- When a number is made ten times smaller, it moves to the right on a place value chart
- Children understand that numbers can be smaller than one whole, and these can be represented as decimals
- That 0.1 is one tenth of a whole. That means you take one whole and divide this into ten equal parts.
- Decimals can be used with money: you put the pounds number first, followed by a decimal point and then the pence
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Key Vocabulary
Multiply
Divide
Tenths
Hundredths
Decimal point
Ten times greater
Ten times smaller
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Key Concepts –Measure- conversion of units, area and money
- Children understand that a KM is 1000 times bigger than a M.
- Children understand that a M is 100 times bigger than a cm
- Children know when it’s appropriate to measure using cm, m or Km
- Kg is 1000 times bigger than a g and a gram is 1000 times smaller than a Kg
- Children understand the different between cm and cm2
- Children understand that area is a measure of a whole surface
- Children can use multiplication to calculate area
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Key Vocabulary
Kilometre Metre
Centimetre Millimetre
Litre Millilitre
Gram Kilogram
Estimate
Compare
Calculate
Area
Surface
Covers
Square centimetre
Cm2
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Common Misconceptions – Number and place value, decimals and money
- Children believe that when multiplying by 10, 100 and 1000, you add a 0, rather than understand that the number becomes ten times bigger etc.
- Children do not understand the different between ten and tenths, hundreds and hundredths
- Children do not understand the value of the digits after the decimal point
- Children do not understand the value of the decimal point, and therefore believe that 23.4 has the same value of 234
Common Misconception – Measure- conversion of units, area and money
- Children multiply by 1000 to convert from cm to m
- Children multiply by 100 to convert from M to KM
- Children confuse area and perimeter
- Children do not understand the different between kg and g and therefore cannot estimate accurately
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