My latin is very minimal, but I do speak Spanish...and took a bit of french. My background (in college) was second language acquisition. So, in a nutshell here's what I have to offer. Start young. Keep is separate...as in MWF is always Spanish, and T/TH is always French. Or something like that. Learning french and spanish back to back on the same day is not the best idea for most. They tend to confuse them, and then you've lost them both. Also, one thing that I found in a study (waaaay back in college) was that kids and adults did a better job at keeping 2 languages separate when they learned them in different places (different classrooms, rooms, used different notebooks....and so on). Just a thought, maybe they have a "french desk" and a "spanish desk"...it might not matter at all, just thought I'd throw that in. I leave latin out because it's not quite the same as learning a modern/speaking language. Above all else, if they are really struggling after some time, drop the weaker one. And, just because someone professor told me all this in college, doesn't mean it's the standard. Do what works for you and your kids. You know your children best! Languages are a great thing....:thumbup: to you for giving your any opportunity to study a foreign language!