Welcome to the HOD Board!

I think you will find this a very encouraging, helpful place to be.

I can see what you are saying here, but let me tell you firsthand that teaching several HOD guides is NOT the same as teaching several guides from other curriculums.

I have taught a year of Sonlight, and there is no way I could do 2 cores year after year. HOD's guides take into account what skills each child should be learning within target age ranges, and believe me, that makes all the difference in the world.

In the younger guides, the 3 R's are more of the focus and the guides are very time conscious - in other words, you get school done rather quickly with the littles while still nailing down their foundational skills.

The older guides teach independence gradually with skills, so that dc really can take over a good portion of their learning each year and thrive, since they have been incrementally taught the skills, and therefore have the ability to truly do things well independently. These skills are correlated with the history, science, storytime, etc. as well, so they are interesting to learn and just a natural part of their overall day (as opposed to add-on workbooks to accomplish teaching "skills").
I have found that many times guides that suggest they can be used across very wide age levels do not include much skill-based learning, especially if they give one blanket assignment for everyone to do. Instead, they often teach to the older while the younger ones just "tag along", and often times the younger dc are really just listening to the readings rather than learning skills appropriate for their age because they really can't do the skills yet. This usually results in an advanced older child with younger siblings who listen very well to read-alouds but have not learned many skills. I believe this is not because the younger dc aren't as bright as the older dc, but instead is because the younger dc keep missing the skills. Because the guide they are in is always addressing the older child and the skills the older child needs, the younger child is not doing the skills as he moves through the guides, but is probably just doing something else we thought of to try to sub in for the things over their head - i.e. coloring pages that match the history (not that coloring pages are bad in themselves, just that they are often replacing skills that need to be taught). Or worse, the skills just aren't included at all in the guides since the age level is just too wide to be able to do so.
So instead of tweaking down for the youngers, we're beefing up for the olders with HOD. This keeps the skills in place for everyone due to the core fitting the target age ranges/and older dc, and for the olders adding extensions and their higher level assignments, using appropriate reading instruction for older dc within DITHOR, choosing harder grammar and higher level math, etc. It keeps the core reading appropriate for everyone listening rather than getting too overly mature topics too soon for little ears.
So, can you combine all of your dc in one HOD guide? Sure! Absolutely! 100%! Just like you can with anything else.

Will it be what's best for your dc? That is something you would need to weigh. For me my 3 dc are all 3+ years apart, and worlds apart in what they need skillwise. It is a very scary thought for me to think of my preschooler, my second grader, and my fifth grader all doing the same thing and essentially being in the same "class" for school. When dc are very far apart in skill level, I do not think combining is easier than teaching separate programs (if the separate programs are HOD and if they appropriately fit the dc using them)

. For me, the easiest happiest answer has been to teach 3 HOD guides. We love our days homeschooling, and I'm not stressed in the least. My almost 3 1/2 yo did LHTH with me for 20 minutes a day, my 7 1/2 yo did Bigger Hearts with me, and my oldest CTC. We were done every day by lunch.

I love this, but I know everyone doesn't have the same goals I do, and I only have 3 dc whereas others have larger family dynamics to consider.
So, if I checked out the placement chart, and my youngest placed in Beyond, and my older 2 in PHFHG or CTC, I'd probably either combine them all in Bigger Hearts (with extensions for the olders, and using appropriate LA/math right sides of guides), or separate them with your 2 oldest in PHFHG or CTC, and your youngest in Beyond. No matter what I did, I'd definitely combine the 4th and 5th grade children in the guide that fits their skills appropriately, as they are close in age and ability anyway. I'd lean toward doing the 2 programs, but that's just me and may not be the right answer for you. Only you will know what fits your goals the best, but you can definitely combine with HOD, and if you only want to do one level you can. We just try to fine tune placement, give options, and then let you make the call here.

It's not that you have to do 2 programs if you do HOD, it's that you have the opportunity to do 2 programs if you wish.

If you just want to do one program, like you would with other curriculums that don't have the opportunity to fine tune placements for dc, then that is just as doable with HOD, and you will know if that's the route you like best. HTH!

If you have more questions, you'll find the ladies on this board to be very willing to help - this is always one of my favorite places to be.
In Christ,
Julie