The students are doing a lab to better understand the relationship of pressure and volume, also known as Boyle's Law. They will also find work by using the Vernier DataQuest application on the TI-Nspire.
The following video shows the set up and the experiment. A screen shot showing the analysis done to find work follows.
To find the work, the area under the P-V diagram, use menu Analyze, Integral. It is important that the work is negative. Why is it negative?