What type of program did you use for your five year old for language acquisition? I want to start a similar course of language with my three year old. Were you programmatic or was it just immersion? Curious if you have any resources.  For context, the language I want to teach is Spanish. It's a second language for me and I'm reasonably fluent after a dozen years of school and several months of immersion in South America. I'm a few years out of practice, however... Thanks!