As an effort towards more student-centered lessons, I created this webquest for students to explore the the dark history of mental illness treatment (or lack thereof). I compiled a series of website links--some are informational, others are visual and in list form. The questions are designed to encourage students to read through the information; most students find this topic fascinating. The material would be best suited for juniors and seniors.
This activity would be handy on days that you need a substitute.
I included one question specific to my home state--you can select your own from the same website.