I think there's a generational gap between Ami and I. It may well be that radical changes were made in high school science teaching, including the lab work, between the 1950s, when I was in HS, and the 1960s or 1970s.
I stand by what I say - - and I don't think for a minute we had bad teachers, our high school was the best public high school in the city, and a student in my senior year there won the Prince of Wales award, given to the student with the highest Grade XIII average in the entire Province.
After Sputnik went up, there was an all-out movement to improve science and math teaching in all North American schools, and I think Ami was probably one of the beneficiaries of the post-Sputnik reforms.