16.5 Compound measures recognise and solve problems • involving the compound measures of rates of pay, density and pressure. Week 4 Review and revision 8 30 Week 31 Week 32 Week 10 17: Ratio and proportion 17.1 Compound interest and calculate simple interest • 33 35 and rates of change: repeated percentage change – calculate compound interest • Percentages and variation problems involving • repeated percentage change. 17.2 Reverse percentage calculate the original amount, • (working out the original value) given the final amount, after a known percentage increase or decrease. 17.3 Direct proportion solve problems in which two • variables have a directly proportional relationship (direct variation) work out the constant of • proportionality recognise graphs that show • direct variation. 17.4 Inverse proportion solve problems in which two • variables have an inversely proportional relationship (inverse variation)
16.5 Compound measures • recognise and solve problems involving the compound measures of rates of pay, density and pressure. Week 30 4 Review and revision 8 Week 31 Week 32 Week 33 – 35 10 17: Ratio and proportion and rates of change: Percentages and variation 17.1 Compound interest and repeated percentage change • calculate simple interest • calculate compound interest • problems involving repeated percentage change. 17.2 Reverse percentage (working out the original value) • calculate the original amount, given the final amount, after a known percentage increase or decrease. 17.3 Direct proportion • solve problems in which two variables have a directly proportional relationship (direct variation) • work out the constant of proportionality • recognise graphs that show direct variation. 17.4 Inverse proportion • solve problems in which two variables have an inversely proportional relationship (inverse variation)
Edexcel_Foundation_3_year_Routemap_and_SoW.docx