Re: World Languages Resources -- Please share what you've used
 

Classical Academic Press has several levels each of Spanish and French for younger learners. Spanish for Children and French for Children.

Memoria Press has two levels of First Start French, listed as grades 5-8.

Breaking the Barrier has Spanish and French.
https://tobreak.com


Little to no experience with any of those.

I can recommend the following for a good introduction for beginning middle school and up students: the Getting Started with Spanish or Getting Started With Latin, by William Linney.

There is also one for French.

Re: World Languages Resources -- Please share what you've used
 

Classical Academic Press also has Latin and Koine Greek For Children. We are slowly working through GFC Primer A (which is all they have so far). It's meant to be a one-year curriculum but it will take us about three at our current pace. I'm very happy with it except I realised that because I'd deliberately chosen a grammar-heavy curriculum (because I wanted the best 'bang for my buck' with postage to Australia to factor in) there is very little reading component and for me, if your not *using* the language in some living way - even a dead language - it's not really language learning... So I supplement with some reading practice we pick at when we have time.