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22. Assessed scientific skills

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3 topics · 17 learning objectives

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  1. 22.1 Handling information and problem-solving

    1. • Locate, select, organise and present information from a variety of sources.

    2. • Translate information between verbal, symbolic, graphical and numerical forms.

    3. • Manipulate numerical and other data accurately.

    4. • Use information to identify patterns, report trends and form conclusions.

    5. • Present reasoned explanations for phenomena, patterns and relationships.

    6. • Make predictions based on relationships and patterns.

    7. • Solve problems, including problems of a quantitative nature and unfamiliar applications of syllabus principles.

  2. 22.2 Experimental skills and investigations

    1. • Demonstrate knowledge of how to select and safely use techniques, apparatus and materials, including following a sequence of instructions where appropriate.

    2. • Plan experiments and investigations with suitable variables, methods, apparatus and safety controls.

    3. • Make and record observations, measurements and estimates with appropriate precision and units.

    4. • Interpret and evaluate experimental observations and data, including patterns, anomalies and limitations.

    5. • Evaluate experimental methods and suggest possible improvements.

  3. 22.3 Mathematical and data-presentation skills

    1. 22.3.1Numerical and algebraic calculations

      • Add, subtract, multiply and divide; use decimals, fractions, ratios, reciprocals, percentages, percentage change and standard form; round to appropriate decimal places or significant figures; use direct and inverse proportion; solve simple equations and substitute quantities into formulas.

    2. 22.3.2Geometry, measurement and biological scales

      • Convert units including cm³ and dm³, mg, g and kg, and μm, mm, cm and m; use areas and volumes of common shapes, rulers, estimates, scale diagrams and surface-area-to-volume ratios; select appropriate units.

    3. 22.3.3Graphs, charts and statistics

      • Draw and interpret line graphs, bar charts, pie charts and equal-interval histograms; interpolate and extrapolate; determine gradients and intercepts with units; select scales and axes; recognise proportionality; calculate means and ranges; use simple probability.

    4. 22.3.4Record readings and tabulated data

      • Record readings to the precision of the instrument with correct units and significant figures; head table columns with quantity and unit separated by a solidus; omit units from table bodies.

    5. 22.3.5Plot, analyse and present biological data

      • Plot independent and dependent variables on correctly labelled axes using sensible scales; mark points accurately; draw justified best-fit lines or curves; read by interpolation or extrapolation; produce clear biological drawings and appropriate pie or bar charts.