I agree with Gina. If it’s just the lab work a co-op my not be necessary. But, if the labs may not get done, I’d do what Gina suggests (and I tried, but couldn’t find everything at a reasonable price, or whatever) so they can get done. If it’s to “get through” the book in a year, I’d do it, the co-op, I mean. And that is because my ds is not a fast/strong reader and it took us way too long to finish. By the time he was about to finish he’d grown so much that the book had lost its appeal (he’d learned a lot from other sources). He moved on to the human body and is happy with that part, but honestly, it should’ve/could’ve been done in a school year (but I didn’t want to rush him either, that would not have worked) but we had scheduling problems, etc. He is so ready for a more challenging year in science!
Hope that made sense.
I’d almost wait and do a co-op science that is more challenging (or disgusting, like dissecting) than General.