Teaching English

I "teach" English to some ladies at church once a week, in exchange for helping me learn Japanese. I'm in no way qualified to teach English. I don't have any curriculum really. We really are just a group of ladies that get together and chat in broken English. But today I did manage to get an activity together that challenged their language abilities. And unusually I had a large group of 5 ladies so it was great that I had an activity planned! I got the idea from this site. I came up with a beginning of a sentence and they have to complete it. And depending on their skill level, they could expound on that sentence. And they had to do it all in their heads, no writing it out first. I found out these ladies read and write well, but have a harder time coming up with what to say on the spot. Perfect challenge. An example is "My car..." and they would complete it "broke down twice last week". Then after that I would help them find better words or grammar structure, etc.
I was so happy it turned out great and it challenged everyone at different skill levels.
The only problem is, I don't really learn much Japanese. I guess I have gotten better at my listening skills, but as far as speaking I'm not even close to how much English they know. I'm taking classes on base once a week and its helped refresh my memory of the 3 yrs of high school Japanese I took. But without daily classes, I've got little chance of learning Japanese any time soon.
Good thing Evan's in Japanese kindergarten and he will be able to translate for me!
BTW, I've tried using Rosetta Stone to learn Japanese, and I highly recommend it for learning any language. It teaches you to recognize the writing/pronunciation/speaking without making you associate it with the English meaning. It basically throws you into the language and lets you to learn from your mistakes. Its pricey though, but if you ever get the chance to use it, its worth it.