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School 2 Class A aged 89
School 2 Class B aged 89
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addition algebraic notation answer approach appropriate aspects bigger bricks centre of enlargement child children were asked circle Class A aged column cuboid Cuisenaire rods cylinder denominator diagram diameter Dienes digits dimensions dots draw drew equal equivalent fractions example Figure find the area find the volume finding the circumference formal method formalization lesson formula given grid interpreted interview PostF interview PreF inverse operators liquorice marked materials mathematics method millimetres multiply Nigel number of squares pattern lines post-formalization interviews pre-formalization PreF PostF pupils question rectangle responses ruler Sacha Sally sample scale factor scheme School shape sheet Sheila shown sides solving equations square centimetres squared paper subtraction algorithm Summary symbols Table taught teacher tens there's three months later three numbers topic triangular prism Unifix unit squares units worksheets written x b x h