Living aboard with kids
It is always difficult for the kids to say good bye. Hopefully you can meet other families with children along the way. We found them few and far between, but when we did find each other we tended to sail together.
We used Calvert School and all the supplies come with the course. Supplementing school is easy on board. Lessons in celestial navigation and the use of a sextant. My children had their own plastic sextant to use. Marine biology and diving, snorkeling are great. Once they are 12 they can get certified for diving. Every trip ashore became a field trip. We would write reports on museums visited, draw pictures of the whales swimming under our boat and identifying them, there is no end to life on board and it certainly is not boring. Books are the hardest to carry and trade. They take up so much room and there are never enough.
Most kids on Calvert school and Nebraska University come out ahead of those with land based education. My children were behind, because we spent so much time in New Zealand and years on the New Zealand correspondence school, but they are now in good Universities, so whatever they lost in academics they made up for in the school of life. Good luck!!