In light of a 90 minute class I have found that taking one minute to go through the goals/schedule for the class for that day that students are given a greater sense of what is coming, and thus more ownership of the objectives for the class. This is accompanied by some visual aid (outline on the board or smart board.)
I also take one minute at the beginning of brain studies class to dim the lights and have the students take 6 slow deep breaths (4 counts in through the nose, 8 counts out through the mouth.) Compliance is amazing. It also allows me to start class quietly and them to be better focused on what comes next.
Both of these techniques are generic enough to be used in any class.
contributed by Mr. Piskel