Just thought I would share these free classes provided by the Smithsonian. They have specific days for homeschooler, one day each month. From Rocks and Minerals to Insect, there are some great classes to supplement BFSU. (Google: naturalhistory.si.edu)
You must register! Homeschool dates are
Jan 3rd, Feb 7th, Mar 7th.
School Programs at the Smithsonian National Museum of Natural History