Left-hand skills are the ones generally covered in method books, so it’s likely you are already teaching most if not all of these skills in your classes. Still, left-hand technique covers a lot of ground, so it’s good to take
Warmups for Orchestra Part 1: Why Do Warmups?
You step up to your podium, facing a classroom full of students ready to start playing. You finish your tuning routine and then think “Now what?” Shouldn’t you do some sort of warmup before you jump into rehearsing the pieces?