I think the people who have the most success combing with HOD place their younger child where they need to be and then beef that guide up as needed for the older child(ren). There is the reason that everyone's advising you to look at separating
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. It would be difficult for you to make the correct guide for your 1st grader (probably LHFHG, possibly Beyond?) be enough to challenge your 4th grader. Even adding things in, LHFHG is going to seem "babyish" for a 4th grader because of the reading levels, etc. Plus, by 4th grade you need to think about more writing, and moving toward independence. And, there's the reason HOD can work separately! You begin to train your older children to take on more and more of their work independently (starting with Preparing Hearts for His Glory). Even if your dc places better in Bigger, there are likely things that they can work on after you get them rolling-like spelling words, copywork, maybe a math page after you explain and start it together.
I'd really advise stagger-starting them. Tackle the older child's guide for a week or two. Work only with getting a good routine down and finding out the requirements together, then you'll be able to gague things that that child can maybe work on while you're doing some school work with your younger child. Or, maybe you'll find that you just need that older child to keep an eye on the 1yo while you do school with the 1st grader
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. After you become comfortable with that guide, start in with the 1st grader. You may consider going "half speed" for a while to get through a tough spot with your toddler, or to become comfortable with running 2 guides. That means you'd do half the boxes from a "Day" one day and then finish up the other boxes from that same "Day" the next. So, each Unit in your guide would take you 2 weeks to complete-you just learn to not put pressure on yourself that "Day 1" has to be completed on Mondays!
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If you can tell us what guides your children might place in, we can help you with knowing how much time to allow for each guide (for example, LHFHG takes us only a couple of hours at the most, normally shorter than that) so you can see how things might be doable with more than one guide. We could possibly also help with a schedule to run both at the same time.
I'd second the advice someone else left about taking a week or 2 to just work with your toddler, and establishing some boundaries for school time. I found that things became impossible around here when my youngest was around the age of turning 2. I found a website called "Raising Godly Tomatoes" and spent a week off school with my older 3 kids, to just work on training the youngest child to stay in the same room with me. That helps me so much, just being able to keep an eye on what he's doing. I know that while I'm reading a story with someone else, he's not off dipping things in the toilet or emptying out dresser drawers or salt shakers or...
One other caution-from my own mistakes!-when I came to HOD, I thought combining was the only possible way I could teach both of my older children, so I picked the guide that was between their skills, thinking that it would be easy enough to just do the parts my younger son could handle with him and all of it, adding in higher math, grammar, spelling for my older daughter. It was failure
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. My son spent every day in tears because things were too hard. He's got the type of personality that quits wanting to try if something is too challenging; so I started to see lots of bad attitudes and refusal to do even the simplest of things. Then my older dd was bored out of her skull. She learned some very lazy habits that I'm still working to break...unfortunately, while I saw the problems of over-placement and pulled my ds back a guide within the first couple of months, I decided I didn't want to waste money
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and kept my dd in the original placment, but had her do most of it on her own.
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. There is the development of those lazy habits-she really got into the routine of not having to try, that things should be so easy she could about do them in her sleep, and give just enough effort to get by and not really challenge herself. It took almost a year, but I started seeing equally bad attitudes from her because of boredom. She just refused to try because she found she could get by with little to no effort at all. And she hated school. At that point I bumped her ahead a guide where she would have correctly placed according to the placement chart, and she began to grow. We still have some of those old lazy habits to work through, but overall, she's much happier and giving much more appropriate effort. She's actually learning
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. With proper placment in 2 guides our school day actually shortened from when we were trying to make 1 guide fit everybody!
Hopefully you're not getting scared off, here! We really are trying to encourage you-it's very, very doable to run separate guides if that's the best placment for your children. Like someone else said above, we're not superwomen!!!