Year 4 Term 5

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

Key Vocabulary
Multiply
Divide
Tenths
Hundredths
Decimal point
Ten times greater
Ten times smaller

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 cm^{2 }
 Children understand that area is a measure of a whole surface
 Children can use multiplication to calculate area

Key Vocabulary
Kilometre Metre
Centimetre Millimetre
Litre Millilitre
Gram Kilogram
Estimate
Compare
Calculate
Area
Surface
Covers
Square centimetre
Cm^{2}

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
