bit.ly/opioidsUS has a great activity on opioids. The data is clearly piecewise- linear for several years and then exponential. I plan to redo day 3, or day 4 in Math 131 when we bridge from linear to exponential growth with a version of this activity. It could be changed into a project, too. Tom Reardon deserves credit for developing the activity.
A Demographics of Murder session was interesting, but would be better for a stat course since there is little correlation between guns and national murder rate, corruption and national murder rate, income inequality and national murder rate, or incarceration and national murder rate. When you only have a little time it is not great to have all “non-correlations.” I can probably get the data if anyone is interested.