For me...
Kindergarten: none
Grade 1: these five "readers" called One by One; Sing A Rainbow; Gingerbread Snaps; Long Long Ago; and Star Light, Star Bright.
Grade 2: a continuation of the reader series: Up Up and Away and My Favorite Things.
Grade 3: a further continuation of the reader series, Birch Bark.
Grade 4: Charlie and the Chocolate Factory, Tales of a Fourth-Grade Nothing
Grade 5: The Big Lie, The Curse of the Blue Figurine, Snow Treasure
Grade 6: I forget
Grade 7: A Midsummer Night's Dream; Catherine, Called Birdy; A Murder for Her Majesty; The Witch of Blackbird Pond,
Grade 8: Cue For Treason, Romeo and Juliet, The Royal Diaries: Elizabeth II, Red Rose of the House of Tudor; The Adventures of Ulysses, The Outsiders
Grade 9: The Outsiders again (different school), The Chrysalids, The Old Man and the Sea, another book I forget the name of about a Jew befriending a German named Konradin von Hohenfels, A separate Peace
Grade 10: Lord of the Flies and Ford of the Lies (Brave New World)
Grade 11: One Flew Over The Cuckoo's Nest, A Separate Peace again (different school), The Sun Also Rises, King Lear
Grade 12: The Wars, Fifth Business