@sim I suppose one could go into college for Childhood Education or something
@sim IDK if you are religious (if so, not all of these will be appealing) but some commonly used curriculum in the homeschool community is Abeka, Math U See, Teaching Textbooks, and Sonlight.
There's also the HSLDA, which helps people make sure they can homeschool legally.
@sim nvm; the HSLDA has international resources as well!
https://hslda.org/content/hs/international/