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Teaching with Writing: Building Effective Tables, Charts & Figures

9 Mar Tetris as chart

March Teaching with Writing Tip
Developed by Center for Writing Consultants, UMinnesota

Well-organized visual displays – tables, charts, and figures – are commonplace in academic writing for many fields, and each works to make it easier for audiences to draw conclusions. Producing effective visual representation of data can be challenging.  Even with the help of sophisticated software, writers must work to learn ways of selecting appropriate data, preparing data for display, plotting using appropriate tools, and reviewing for consistency and clarity. All are essential steps in the process of building effective visuals.

This post shares strategies for helping your students communicate with data through mindfully developed tables, charts, and figures.

ChartSelecting & editing appropriately

Most disciplines have standard practices for gathering data, but the process of turning raw data into usable information is less explicit. Three simple strategies for assisting students in the selection of data include

  • Model the process of data selection. Using your own research or publicly available data, show students the processes of moving from reviewing collected data to evaluating and making ethical decisions about what data should be conveyed for a particular project or context.
  • Address visualizations through course readings. In scientific disciplines, standard methods and results sections of papers are clearly identified.  In assigning course readings, instructors can usefully guide students to delineate between methods of investigation to the questions answered by visuals in the results section. In qualitative and humanistic fields, students might need more assistance in identifying the moves that typically precede and follow figures.
  • Present strong and weak examples. When presenting effective examples of tables, charts, and figures, ask questions that will elicit from students the observable features and choices that make for good data selection and representation. In addition, show students examples of ineffectively selected or represented data, ask them to identify weaknesses, and to suggest revisions.

graphSelecting appropriate form(ats)

When designing assignments, consider and specify how tables, charts, and figures may “count” toward page length requirements. Here are some important reminders for students about what form to choose and what to include.

Tables are used for large sets of data when each item matters. They generally require a title at the top and an explanation of the contents along both axes. Whether presenting nominal, ordinal, or quantitative data, the text should be large enough for easy reading, and the grid should make it easy to find unique values.

Charts are used for aggregate data, including composition, distribution, correlations, and trends. Charts require titles, legends, and captions. They should be labeled with clear units of measure, but should otherwise be restrained in the use of visual effects like color. Most charts should avoid grid lines, but should have a clearly established 0 on the y axis.

Figures are the broadest category, and can include a host of visual materials. Figures should always be labeled sequentially and require a caption. Because figures often include complex visual information, they can range significantly in size and level of detail.

Reviewing tables, charts, and figures

Students often overlook proofreading, particularly of visuals. Providing checklists for important details (titles, legends, captions, and the like) can assist students in remembering the observable features of an effective visualization and avoid some of the headaches associated with common errors.

Building visuals from the start

Among the most common issues that students face when incorporating data into their drafts is ineffective time management. Because students often underestimate the time required for exploring data and extracting useful information, it is useful to set aside time in class to review drafts of visuals. In scientific and social science fields, the writing process often begins with charts and figures. If an assignment incorporating tables, charts, or figures is due in two weeks, it may be useful to set aside time a week previous to discuss early data considerations to head off serious challenges.

For example, an in-class writing activity may ask students to address three questions:

  • What is the central message you have identified from the collected data?
  • On what basis have you drawn your conclusions?
  • Given the message you have identified, what modes of display might be appropriate to communicate your message visually?

Tetris as chartResources

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All images from Mark Anderson’s andertoons.com.

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