In: Andrew Ravenscroft; Stefanie Lindstaedt; Carlos Delgado Kloos; Davinia Hernández-Leo (Hrsg.). 21st Century Learning for 21st Century Skills; Submitted to the European Conference on Technology Enhanced Learning. European Conference on Technology Enhanced Learning (EC-TEL-2012), September 18-21, Saarbrücken, Saarland, Germany, Pages 222-235, Vol. 7563 2012, ISBN 978-3-642-33262-3, Springer, 2012.