The 40-ish crowd... Please help!!

[LAJ]

OK... so I was hanging out with some friends at a bbq this weekend and we got on the subject of obscure movies that haunted us when we were kids. NOT mainstream movies that you saw at the theatre, but rather the shit they showed you in elementary school or perhaps stuff you saw on TV after school specials. Being that I was about 9 years older than the next oldest person... everyone looked at me like I was crazy when I talked about some trippy movie that involved pancakes... can't for the life of me remember the title. There was also Shirley Jackson's "the lottery"... a personal fave of mine. Two others I can recall... one was where a classroom of kids were taught about racism and were separated by the color of their eyes in two groups... and another where some kid was on a bus and then he got off and collapsed in the snow and it was about his sickness and/or recovery. That's all I can remember about that one! I saw all of these in the 70s and if anyone else can look in their minds eye that perhaps shared these experiences and recall titles or any clues that can help me turn up a useful google search... please let me know!!