7.3 Mathematical and data-presentation skills
- Syllabus
- 0625–2026–2027
- Topic
- 7.3
- Level
- —
7.3.1 Numerical and algebraic calculations
- Use arithmetic, decimals, fractions, percentages, ratios, reciprocals, comparisons and standard form; round final answers appropriately; estimate; use indices, consistent units, formulas, direct and inverse proportion, mathematical models and Δ for changes in variables.
7.3.2 Geometry, measurement and unit conversion
- Use geometry, circumference, areas, volumes, scale diagrams, Pythagoras’ theorem, angles, mathematical instruments, compass directions and metric unit conversions in physical contexts.
7.3.3 Graphs, charts and statistics
- Draw and interpret graphs and charts; interpolate and extrapolate; determine gradients and intercepts; select scales and axes; use y = mx + c, recognise direct proportionality and calculate means.
7.3.4 Record readings and tabulated data
- Read instruments to half a smallest division where appropriate; record precision, units, repeated readings and significant figures correctly; use quantity/unit table headings and express ratios as x : y.
7.3.5 Plot and analyse physical data
- Plot variables on labelled axes with sensible scales; mark points accurately; draw and interpret best-fit lines or curves, anomalies, intercepts and gradients using suitably large triangles.
7.3.6 Extended trigonometry and curve gradients
- Use sine, cosine, tangent and inverse trigonometric functions, and determine the gradient of a curve by drawing a tangent.
Objective notes
6 learning objectivesConceptIGCSE Physics