It’s wide open. My wife homeschooled my two daughters from 2nd and 3rd grade, respectively. Till they were 13 and 14 and were accepted into junior college. Lyrical Learning is a must. She taught grammar out a 1950 college level English book. Taught anatomy using the anatomy coloring book (college level) and Lyrical Science. Stick to the basics for the core, reading writing and arithmetic. Get a good background in history, especially American. Teach how to look at the reference section of a book to identify if it is based on primary sources. Know the world view you want to instill in the child. If a christian world view, do not be afraid of exploring the secular world view at all. The child needs to be grounded in truth, so they always have an answer. Follow the interests of the child. Join homeschool groups and co-ops. Have fun!
Thank you