Does Dora actually teach Spanish?

I'm curious, does Dora from the popular children's show actually teach Spanish? It seems like she's always speaking in Spanish and the show is marketed as an educational tool to learn the language. But do the episodes actually provide structured lessons or is it more about immersion and exposure? I'm interested in hearing your thoughts on whether Dora truly serves as a teacher of Spanish or if she's just a fun character who speaks the language.