given part:whole ratio to finding a fraction of a part:part or part:whole ratio; express the division comparisons expressed using a : b notation in quantity; relate part:part ratios of quantities to the of a quantity into two parts as a ratio which the idea of is a helpful model and ‘part’ corresponding part:whole ratios contexts in which the idea of is not a helpful ‘part’ model Percentage change solve problems involving percentage change, solve problems involving simple interest in including: percentage increase, decrease and financial mathematics original value problems Direct and inverse proportion solve problems involving direct proportion, solve problems involving direct and inverse including graphical and algebraic representations proportion, including graphical and algebraic representations Compound units use the idea of compound units (A as in use familiar compound units, such as speed, to use compound units, such as density, to solve ‘per’ B), unit pricing, to solve problems solve problems problems
given part:whole ratio to finding a fraction of a quantity; relate part:part ratios of quantities to the corresponding part:whole ratios part:part or part:whole ratio; express the division of a quantity into two parts as a ratio comparisons expressed using a : b notation in which the idea of ‘part’ is a helpful model and contexts in which the idea of ‘part’ is not a helpful model Percentage change solve problems involving percentage change, including: percentage increase, decrease and original value problems solve problems involving simple interest in financial mathematics Direct and inverse proportion solve problems involving direct proportion, including graphical and algebraic representations solve problems involving direct and inverse proportion, including graphical and algebraic representations Compound units use the idea of compound units (A ‘per’ B), as in unit pricing, to solve problems use familiar compound units, such as speed, to solve problems use compound units, such as density, to solve problems