Hello.
I am Czech native, I would like to have some teaching experience.
If you want to I can help you with Czech language via email or Google Groups or something.
I am online 16 hours per day and I can reply to your messages instantly.
I do not know Czech grammar, I can help as a native speaker - correct sentences, help with translations, give you feedback etc.
If you would like that just post in this thread.
Looking forward.