Translation of nummerieren

This website helped me learn French. Although most of the users intend to learn either Spanish, German and English some users come here to learn French. I met a few people that helped me with it.
After our system update, lessons will be saved for 30 minutes automatically, if you want to save them permanently, you need to press the 'save lesson' button. It than works the same basically.
I will start working on it next week. You can also have a look at our site and give me some feedbacks. You know Spanish better than I do. so please be patient with our questions. I would really like to help.