It’s no secret that I think data should be made visual and beautiful, but there is also sound evidence to support why data is better understood in visual reports.
I had the opportunity to work with a math consultant, building a visual to support a data-dive into MAP data with a partner school. The challenge with any representation is telling the story.
Partnering with the consultant, we decided to focus on RIT Bands instead of percentiles or RIT scores. Since MAP organizes learning by RIT band, we thought this would be better for discussion.
We also wanted teachers to be able to have a conversation about the differences between grade levels. This gave me the idea to incorporate medians and to subset the data into grade levels.
Here is the result of our collaboration:
There are actually numerous variables that your eyes are digesting:
The colors and the subplots show the different grades
The x-axis is the raw RIT scores (with the labels swapped for Bands)
The dark & light bars, coupled with the x-axis labels show the RIT Bands
The darker bar shows the median RIT band
The y-axis is the number of students in each band
The teachers were able to see how the need for differentiation increases in the higher grade-levels and share strategies and resources to meet those students needs. The teachers were able to see how the median goes up by at least a Band each year, giving credibility to the value added in their math program.
Disclaimer: The data and graphics used on this site are simulated re-creations intended to protect the privacy of the original data sources.