Here is my 3rd graders day. We do a 4 day/week schedule
8:00-8:20 Piano Practice
8:20-8:45 Quarter Mile Math or Mavis Beacon Typing (alternate days)
8:45-9:00 Bible (whole family)
9:00-9:40 Math (Saxon 3 but reallt ready for 5/4)
9:40-10:00 FLL3
10:00-10:20 WWE3
10:20-10:40 Spelling Workout D
10:40-11:00 Prima Latina
11:00-11:30ish Reading for History on T Literature selections on M TH F silently
Break for Lunch and Play
1:00-2:00 History M F (WTM style with Biblioplan added for more AM. History) Science T TH (WTM style)
2:00-2:40 Another math lesson (because it's easy for him and he LOVES it and we want to get to 5/4)
He usually has a "fun" book that he is reading as well.
I don't know if we are slacking, but it is only about 4 hours of instruction from me and the rest is independent. I make sure he (and the other kids) have plenty of play time.
HTH