The three books that I remember the most: Charlotte's Web by E.B. White, My Side of the Mountain by Jean Craighead George and From the Mixed-Up Files of Mrs. Basil E. Frankweiler by E. L. Konigsburg were all read to me in different grades in elementary school.
It's been 40 years since I've been in elementary school and over 10 years since my own kids would let me read to them. Even though that's a lot of literature under the bridge, I hope these books are still being read to, and read by children today.