@momof3, my 3rd/4th grader had his own program going, but he still wanted to follow along with his younger bro. when we used Outdoor Secrets. He also likes/loves nature study, basically he loves all things nature, science, fun, crafty, whether it’s in reading about it or doing it, you get what I mean, I’m sure.
106 Days is wonderful for combining age/grade levels, which I plan to use in the future with my younger set.