Curious about how prevalent it is among high schools to use an A/B day system where students have half of their classes on the "A" day and the other half on the "B" day.

While several schools in our area do this, my kids' school does not. I'm convinced (with no data to back me up) that there are advantages to the system but that our school administration is opposed to it precisely because making the change would take a lot of work.

Answer below if you have now or have had a high school student in the last 5 years (or you happen to know what the local school does even if you don't have a current/recent student).,

If you have any information about educational outcomes in alternating block school day schedules vs. all-classes-every-day schedules, put that in the comments.