HOME SCHOOLING CHILDREN
We have been homeschooling our kids aboard for 5 years and homeschooled for their entire life. Daughter is 16 and going to college next fall. Son is 14. It is a great experience for them, but cruising school not be like regular school. It takes less time and you should take advantage of where you are. If you''re transisting the Panama Canal, study that, not ancient China. Calvert is OK, but too much like regular school. For a year, you can buy the books you need and give it your best shot - they''ll do fine.
There is a good book, called Fun Afloat by Theresa Fort that has lots of good educational and fun stuff in it. You can get it through Amazon or Good Old Boat.