1. Creating social presence in online environments;Aragon;New Directions for Adult and Continuing Education,2003
2. Observing interaction: An introduction to sequential analysis;Bakeman,1997
3. Developing mathematics reform: What don't we know about teacher learning—but would make good working hypotheses?;Ball,1994
4. Designing for virtual communities in the service of learning;Barab,2004
5. Video as a tool for fostering productive discussions in mathematics professional development;Borko;Teaching and Teacher Education,2008