Some of the schools are pretty innovative. I've heard discussion of going to a three-semester system, so you would have September to January, January to April or May, and then a summer one. The loss of time, by having that summer break, can compound some of the second-language issues and learning retention rates.
There are a lot of night classes being offered to alleviate some of the overcrowding during the day. But that does lead to high burnout of teachers and of the school system itself. The facility takes on a lot more wear and tear.
But there are some creative and innovative undertakings being done by a lot of the communities to address some of these challenges.