Block schedules are increasingly popular in high schools and middle schools around the country.
Days are divided into fewer, longer class periods. This seemingly simple change in scheduling has so many implications for instruction, curriculum and evaluation that it tends to stimulate major restructuring of school programs. Some schools in the Upper Valley have switched to block schedules. Chelsea High School made the change in 1993-94. Hartford High School and Thetford Academy adopted block schedules in the 1995-96 school year.