About twice a week we would go to the computer lab filled with Apple IIes. Usually we had to play Number Munchers, Word Munchers, or some other game to reenforce whatever we learned in class. After we finished the game in the lesson plan, we could then play whatever educational game we wanted. Oregon Trail was a popular choice because nothing was funnier than having the game say a classmate had died or broke a leg. And the hunting and rafting mini games were the closest to arcade games.

Also keep in mind that the only exposure most of the teachers had to a computer were the mainframe terminals in the school's office or the computer lab. MECC put together a lot of software and training for teachers. A school building out an Apple II based computer lab with a bunch of MECC software was as close to turnkey as they could get at the time. The documentation for Oregon Trail or Odell Lake gives you an idea of what it was like.

http://www.mecc.co/history/the-oregon-trail---a-157/mecc_a-157_oregon_trail.pdf

http://www.mecc.co/science/odell-lake---a-192/mecc_a-192_odell_lake.pdf