I've begun to teach a class of beginners recently. They're all between the ages of eleven and thirteen, and they'd never been to an english school before. However, all of them know a little of english, since they've been having english classes at elementary school.
So, today, that was the situation: it was our fourth class, and I wanted them to make a collage and write a small introduction conversation between two characters. Something pretty much like: "Hi, what's your name? I'm john, and you? I'm Maria, nice to meet you"... But, instead of this, they started to brainstorm about more elaborated sentences, some in the past tense, some even with modals. The introduction dialogue idea was forgotten and they started to think of little stories and situations.
So I just let them do what they wanted to do and just watched as they discussed the pictures and used the dictionary. I found the result really interesting later on, when I sat and read what they'd done. But there are some really serious mistakes, and now I'm a little worried about my procedure. I mean, it was really worth for my analysis, for knowing what they can or can't do with the language, but I guess I have to think about a way to correct the mistakes without antecipating the approach of many structures at the same time. Maybe I should keep the sheets with me and work on them throughout the semester, and give them the chance to reconsider some structures when it's "the time to actually learn them".
Do you have an opinion about that?
I just didn't feel like sticking to my command at that particular time. I really like to see students trying to find things out by themselves, but sometimes I need to control myself. Just got to be sure when's the right time. Can you give me some advice?
Thanks in advance

Milena
ps: Larry, if you come across this topic, I just want to thank you for you support and clear explanations about grammar. I really appreciate it!