I'm in Scotland - kids back at school.
DS has swimming for the first block of PE. Said they didn't get very long in the water due to having to get changed into/out of costumes and rush to next class.
Got me thinking - why don't schools make more use of double periods for practical classes- PE, science, home ec, technology etc. Instead of two 50 min lessons make it one 100 min lesson a week.
Seems logical to me - do your kids' schools use them, or is it a logistical hassle for them? Maybe it'll happen in the later years.