Rightstart Math? It aligns with common core so it should cover everything your son would need for the grade. It does use part/while circles, which I think are number bonds, but doesn't use them a ton so he might be okay with it.

I invented this recipe in university, and it's non-curry. Lentil soup: Throw dry red lentils in water, start to heat. Add carrot, onion and butternut squash in 1 inch chunks. Add squashed/chopped garlic. Season with leftover packets from beef or mushroom ramen (like I said, university... Some kind of bouillon would work.)

Actually.... What about not really doing any grammar or spelling instruction right now? Let her delight in writing for her own pleasure for a while. That's brilliant, and many of us only dream of having our children enjoy writing. After a few months, you could consider looking into Bravewriter, which might be a good approach for her. You could also consider the MCT series if she's loving playing with language.

I would have thought that some of the techniques would be similar to Rightstart, given how it focuses on breaking down numbers and manipulating them. Is it not? Partial products, for instance? If you can, it would probably work best to use her techniques and gradually bridge them over to a more traditional notation form; which, presumably, was what the school would have done anyway. The Rightstart materials may work well for that.

That would probably depends on which state or country you're in, and whether the local schools even teach an historical period in grade 3. Ours doesn't. But the real question is, do you need to be bound by what would match the local schools? In most cases, you don't need to be and can feel free to start at whichever book you like. Ancients would be recommended, and progress through in order. Unless you want to start with book three to get on the "correct book" for the rotation to end in grade 12. If you took that route, perhaps you could just do books one and two as read alouds and then move onto book three.

Roof tiles, I would imagine.

I'd probably start with Progressive Phonics (free online) and see how it goes. You could also check your local library for The Ordinary Parent's Guide to Teaching Reading. Mine doesn't have it, alas.

Probably! I haven't tried. And I do know that my mom's friends used to melt then down in a pan on her stovetop and they caught fire once, so... Use caution!

Usually, a period of deschooling is recommended before starting homeschooling. I'm concerned that schooling through the summer might make things harder for you both.

Crayon rocks are amazing for this. They force a tripod grip without reminding because it's really the only way to hold them. They're pricey, but maybe worth it? Or you can make your own by melting crayons and using a mold for soap or candy or something.

Depends on the kid, I guess. It was enough for me. Maybe it isn't for some. But, as a lover of books... I'd really suggest you not to try to make her stop and look things up. Either pull the words or yourself, or give her a separate program and let her go. Trying to get a reader to stop and look up a word in the middle of a good story? UGH!

I would also encourage you that inferring meaning from context and moving on is actually how we're wired to acquire language. That's what babies and toddlers do... And then the next time they meet the word the meaning gets refined and improved. So she does actually have a working system in place already.

Rightstart. It's amazing. You'd need to look used, though, as it's not cheap. But it's excellent. You could try asking around on your area if there are any sets you could borrow?

String ribbon/twine/whatever across a wall and use clothespins. Depending on how you attach the strings it could be taken down in some seasons and put back in others.

Does she write well when assigned specific topics?