google spreadsheet

Overall, students with below average test scores had an increase in test scores on tests 6-10. Looking at the chart, one can notice an upward trend. Many of the below average students appear to follow a linear progression, while a few students have periodic spikes. In general, those students with the lowest beginning test scores increased their scores at a slower rate than did students with higher beginning test scores. The averages range from 141.6 to 190.2.

Google spreadsheets was particularly useful in creating the visual representation of the data. This chart makes it much easier to see the overall trend. In addition, google spreadsheets makes it easy to change which data to include in the averages and in the chart.