Mathematical and statistical skills
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AS and A Level mathematical requirements
M.1—Prefixes, units, symbols and standard form
Use biological units and prefixes including G, M, k, m, micro and n; select appropriate units; use decimal and standard form; interpret symbols such as less than, greater than, less than or equal to, greater than or equal to, proportional to, solidus in units and sum notation.
M.2—Calculator use, estimations and significant figures
Use a calculator for arithmetic, squares, square roots, reciprocals, logarithms and means; estimate calculation results; record experimental data with appropriate precision; keep justified significant figures in calculated quantities.
M.3—Magnification, actual size and geometry
Calculate magnifications and actual sizes; calculate areas of triangles, rectangles and circles; calculate perimeters and circumferences; calculate surface areas and volumes of cuboids and cylinders.
M.4—Averages, ratios, percentages and experimental error
Calculate mean, median, mode and range; recognise and use ratios; calculate percentages and percentage changes; express errors in experimental work as percentage errors.
M.5—Graphs, data transformation and rates of change
Translate information between graphical, numerical and algebraic forms; construct and interpret line graphs, pie charts, bar charts and histograms; choose suitable graph types; orient and scale axes correctly; choose straight joins or best-fit lines; calculate rates of change from gradients and tangents.