We do - sort of.
My kids are 9, 6, 6, and 3 (almost 4).
We have table time in the morning. I aim for 3 - 5 days a week but we are always willing to trade table time for an outing or to do table time later in the day (or skip it all together) if there is something else we need/want to do in the morning. Table time is when the kids will work on writing/reading and math. We use a math curriculum (Miqion and Challenge Math) and my 9 y/o is working through a grammar program. He also practises handwriting and spelling by copying or doing dictation of a couple of lines of a poem. This schedule came out of discussions about his educational goals. We skip around and supplement as things come up. We'll often do a catch-up or review week a couple of times a year to give me an idea of stuff that we need to cover or stuff we can skip because he's got it.
My middle two do reading and math (Miquon) at table time. One of them is struggling with very basic reading concepts (I'm beginning to suspect dyslexia) so we are pretty careful to practise some reading skills every day with her but we can do some of it on the go rather than at the table. I'm using a combo approach right now until I find something that really works for her. I can see us moving over time to a more structured schedule and program for her for reading.
Table time takes about 60 - 90 minutes of my time total - the kids each spend roughly 1/2 and hour - some with me and some on their own
After lunch (or later in the afternoon if we have been out) we have reading time which is when I read "school" related stuff - so right now we are talking about caves and archeology for example. I would read about those topics, a few math related books, and some historical fiction or a few chapters from the current read aloud. Again we are always willing to move this to bedtime, or skip it if we have something else on. I aim to read for about 45 minutes to an hour.
We also have table time w Dad after dinner. It's usually time for board games, science experiments (we're using a heavily supplemented RS4K as the basis for a loose co-op with friends) or history/geography projects (unit study based) - often hands-on and usually 2 times a week. It doesn't happen as much in the summer as we are out at sports 3/4 nights a week and often do outside stuff on the other days. Right now the kids are using this time to get DH to help them build their egg drop containers for our upcoming Humpty Dumpty night

In the fall we are adding in Latin (Minimus) and a French (co-op) and we will probably add time for both of those around table time in the morning and the kids want to add in Story of the World activities so we may pick an afternoon each week for focus on that.
I'm not a schedule type person and prefer to aim for a rhythm to our days/weeks.
HTH
Karen