Draw requires an accurate, labelled diagram or graph that is produced to scale. Sketch requires the correct general shape and relevant key features, but it does not need to be precisely to scale.
This distinction is part of SL 2.3, Graph of a function and applies to graphing tasks on all GDC-active IB Mathematics: Applications and Interpretation papers.
What Each Command Term Requires
| Command term | What the examiner expects | Typical graph requirements |
|---|---|---|
| Draw | An accurate representation using an appropriate scale | Accurately plotted points, consistent scale, labelled axes and precise positioning of features |
| Sketch | A representation showing the overall shape and important features | Correct shape, labelled axes, intercepts, turning points and asymptotes where relevant |
For example, if asked to draw the graph of from a table of values, plot the points accurately using a clear scale and connect them appropriately. A rough curve with approximately positioned points would not fully satisfy the command term.
If asked to sketch the graph, you may transfer its shape from your GDC screen. However, you must still show the features needed to identify the graph, such as its intercepts, vertex, maximum or minimum points, and vertical or horizontal asymptotes.
A common misconception is that a sketch can be careless or unlabelled. This is incorrect: “not to scale” means exact distances are unnecessary, not that mathematical accuracy is optional. The graph must still communicate the correct behaviour of the function.
Exam Technique
Underline the command term before starting. For draw, choose a sensible scale and plot accurately; for sketch, prioritize shape and labelled key features. In both cases, label the axes and include every feature specified in the question, since a correct GDC display alone earns no credit unless the required graph is transferred to the answer space.