# data[].attributes.body
Students forget metric conversions or get them the wrong way around

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Confusion with imperial systems if using a calculator - may misinterpret eg 5.2 for 5ft 2"

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Confuse but isnt vital to a expert

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Basic conversions
Edexcel expect students to recall basic conversion rates

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Numbers are not nice

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Question mixes between Cm and M but only gives conversions from Inches to Cm

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Students can think they have a correct answer but have done the whole process wrong

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Students can think they have a correct answer but have done the whole process wrong

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Lack of scaffolding

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A lot of reading before tackling problem.

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A lot of reading before tackling problem.

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Studentsdo not have realisation of scale

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Studentsdo not have realisation of scale

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eg anser of 0.6 million cubic meters

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Unfamiliar terms like rand and students may just combine this with the £850.

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Unfamiliar terms like rand and students may just combine this with the £850.

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Use of calculator may make question seem easy.

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Use of calculator may make question seem easy.

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Options of answers - changing from metric to imperial or imperial to metric

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Unfamiliar terms and confusing parts - like is greatest rounding up or rounding down.

# data[].attributes.subject
Unfamiliar terms and confusing parts - like is greatest rounding up or rounding down.

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Calculator Use can make a incorrect answer seem correct without basic understanding of scales of units

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Calculator Use can make a incorrect answer seem correct without basic understanding of scales of units

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With greatest number of 200 notes students unsure if they need to round up or round down.

# data[].attributes.subject
With greatest number of 200 notes students unsure if they need to round up or round down.