17.4 Inverse proportion solve problems in which two • variables have an inversely proportional relationship (inverse variation) work out the constant of • proportionality. Week 10 18: Statistics: 18.1 Sampling obtain a random sample from a • 5 7 Representation and population – interpretation collect unbiased and reliable data • for a sample. 18.2 Pie charts draw and interpret pie charts. • 18.3 Scatter diagrams draw, interpret and use scatter • diagrams draw and use a line of best fit. • 18.4 Grouped data and averages identify the modal group • calculate an estimate of the mean • from a grouped table. Week 8 Holiday Week 7 19: Geometry and 19.1 Constructing triangles construct accurate drawings of • 9 10 measures: Constructions triangles, using a pair of – and loci compasses, a protractor and a straight edge. 19.2 Bisectors construct the bisectors of lines • and angles construct angles of 60° and 90°. • 19.3 Defining a locus draw a locus for a given rule. • 19.4 Loci problems solve practical problems using • loci.
17.4 Inverse proportion • solve problems in which two variables have an inversely proportional relationship (inverse variation) • work out the constant of proportionality. Week 5 – 7 10 18: Statistics: Representation and interpretation 18.1 Sampling • obtain a random sample from a population • collect unbiased and reliable data for a sample. 18.2 Pie charts • draw and interpret pie charts. 18.3 Scatter diagrams • draw, interpret and use scatter diagrams • draw and use a line of best fit. 18.4 Grouped data and averages • identify the modal group • calculate an estimate of the mean from a grouped table. Week 8 Holiday Week 9 – 10 7 19: Geometry and measures: Constructions and loci 19.1 Constructing triangles • construct accurate drawings of triangles, using a pair of compasses, a protractor and a straight edge. 19.2 Bisectors • construct the bisectors of lines and angles • construct angles of 60° and 90°. 19.3 Defining a locus • draw a locus for a given rule. 19.4 Loci problems • solve practical problems using loci.