Today, the students are off and we have an institute day. I was thrilled when I saw that the morning agenda included teachers sharing their instructional best practices with other teachers. Teachers could choose two of four sessions to attend. I quickly agreed to share peer instruction with my colleagues. A large part of my session was derived from Stephanie Chasteen’s materials from the Science Education Initiative at the University of Colorado. (Also, thanks to those of you who help me out yesterday on Twitter!)