So I’ve recentally been going to middle and high schools around where I live to coach some of the young bassists in the music programs around. Some of these kids are brand new to bass and have never really received instruction about it before. I’ve been having luck teaching them about posture and good arco/pizz technique, but for the beginners I’ve been having real trouble figuring out how to show them healthy left hand technique. I know I should’nt exactly expect some of them to have conservatory/professional level left hand technique within a few weeks of working with them, but I at least want them to not hurt themselves down the line, especially for the middle school kids if they continue music in high school. Does anyone on here have any information they would be willing to share about teaching beginners healthy left hand technique?