Calculate mean and range.

Use and interpret scientific notation (e.g. 3.5 × 106).

Use approximation and estimation.

Appreciate when some effects can be ignored and why this is useful.

Compare and quote values to the nearest order of magnitude.

Understand direct and inverse proportionality, as well as positive

and negative correlations between variables.

Calculate and interpret percentage change and percentage difference.

Calculate and interpret percentage error and percentage uncertainty.

Distinguish between continuous and discrete variables.

Apply and use International System of Units (SI) prefixes and units.

Express quantities and uncertainties to an appropriate number of significant figures or decimal places.

Understand the significance of uncertainties in raw and processed data.

Record uncertainties in measurements as a range (±) to an appropriate level of precision.

Propagate uncertainties in processed data, in calculations involving addition, subtraction, multiplication, division and (HL only) exponents.

Express measurement and processed uncertainties—absolute, fractional (relative), percentage—to an appropriate number of significant figures or level of precision.

Apply the coefficient of determination (R2) to evaluate the fit of a trend line or curve.

Sketch graphs, with labelled but unscaled axes, to qualitatively describe trends.

Construct and interpret tables, charts and graphs for raw and processed data including bar charts, histograms, scatter graphs and line and curve graphs.

Plot linear and non-linear graphs showing the relationship between two variables with appropriate scales and axes.

Draw lines or curves of best fit.

Interpret features of graphs including gradient, changes in gradient, intercepts, maxima and minima, and areas.

Draw and interpret uncertainty bars.

Extrapolate and interpolate graphs.