(aka Herding squirrels and teaching them to sing on pitch)
Middle School is a tough and fantastic age group to work with. They challenge you daily and demand your best; the most successful teachers serve that expectation and energy right back to them. Middle schoolers want to be both kids and grown up. I know I try to feed both halves of that personality split. Let them be goofy when appropriate and insist on professionalism when it’s time to work and perform. I also do as much as I can to lead them to certain things subconsciously for two reasons: 1. It’s good pedagogy and 2. Their subconscious usually doesn’t argue with me.
During warm ups everyone vocalizes the fullest range of the voice (both girls and boys). We do at least one overall ascending exercise, one descending exercise, and either a range extender or a tongue twister. I teach them why we do certain vocalizes and what their instrument is as scientifically as possible; that knowledge gives them responsibility and accountability for their participation and performance in class and on stage. For instance my favorite warm up is what I call a lip bubble (aka motorboat sound). Ascending and descending the perfect fifth, either with a legato or glissando articulation, gives the students a limited range to manage or focus on. This exercise is wonderful for supporting and maintaining airflow as well as relaxation of many muscles. Occasionally adding the outstretched tongue, which can release some minor tongue tension, injects some purposeful silliness at the beginning of the rehearsal. I usually begin in E flat or E and ascend by half steps to D’. If the piano is used at this point, I try to only have the open fifth or adding the playing the do, re, and sol as a chord to get their ear active in tuning.