One strand of the How Science Works skills in the Year 9 SOW
| Level 3 | Level 4 | Level 5 | Level 6 | Level 7 GCSE |
| Put data into a table. Draw a bar chart with whole numbers on squared paper. | Fill out a blank table you have been given or copied. Draw a bar chart with some help. | Draw a table and calculate mean values. Draw a bar chart independently or scatter graph with help. | Draw your own table with the headings and units. Draw a simple scatter graph with a line of best fit. | Use a consistent number of decimal places in your work. Select appropriate graphs, and scales, plotting complex data accurately. |
| Fill out a table accurately | Add headings and data to a blank table you have been provided with | Draw your own table and record results | Complete a table independently with correct headings and consistent use of units | Complete a table with consistent use of units, and decimal points |
| Add results to a bar graph that has been started for you | Draw a bar graph if axes have been provided | Calculate a mean | Ignore anomalies when calculating mean values | Calculate a mean, excluding anomalies to appropriate numbers of decimal places |
| Draw a simple bar chart for whole numbers on square paper. | Draw a bar chart without support | Choose the appropriate graph for the data and select the correct line of best fit. | Select a suitable graph, scale and line of best fit. Axes are labelled and units are given | |
| Draw a scatter graph when provided with axes or scales. | Accurately plot data where the independent variable has a regular interval | Accurately plot data where the independent variable has irregular intervals or is given to many decimal places. |