1. Technology-Enhanced Learning (WS 2012/13) Social and Collaborative Technologies Oliver Scheuer

2. T1: Collaborative Problem Solving UML modeling in a team using Collect-UML. (screenshot taken from Baghaei et al. [2007]) Group awareness support. The meter displays the balance between problem-solving actions (“tuning”) and chat actions (“talking”). (screenshot taken from Soller et al. [2005]) Example 1 Example 2 2 Shared Workspace 3 Private Workspace 1 Problem Statement 4 Chat 5 Tutorial Feedback

3. T2: Collaborative Argumentation Diagrammatic representation of scientific argument and tutorial feedback to guide the scientific inquiry process. (screenshot of the LASAD user interface emulating the Belvedere argumentation system)

4. T3: Peer-Tutoring and Peer-Reviewing Peer tutor user interface to support tutee in solving an algebra problem. (screenshot taken from Walker et al. [2011]) Peer-reviewer feedback within the SWoRD system. The chart shows how consistent the reviewer’s assessments are with those of other reviewers. (screenshot taken from Cho & Schunn [2007]) Example 1 Example 2

5. T4: e-Learning in the Social Web Stimulating participation of a community of learners in a file sharing platform through visualizations. (screenshot taken from Vassileva & Sun [2007]) Creating and sharing annotations of web-based learning resources. (screenshot taken from Farzan & Brusilovsy [2008]) Example 1 Example 2

6. T5: Adaptive Recommenders for e- Learning Recommending educational resources based on collaborative filtering techniques. (screenshot shows the learning resource exchange portal; http://lreforschools.eun.org)