We are planning a ski day the 8 February in Unterammergau.
The ski lessons for kids at Unterammergau are 60€ per day of 4 hours(from 10 to 12 than 13 to 15, with lunch for the kids and lift included). You can also decide to enroll your kid only for 2 hours in the morning or in the afternoon.
We can leave Augsburg around 8:30 am, have lunch at the Schleifmühle Gasthof, and return at 4 or 5 pm.
Check out this link for more details: www.steckenberg.de.