The document summarizes two studies that evaluated educational technologies. The first study examined students' perceptions and use of mobile learning in distance education through surveys. The second study evaluated specific pedagogical features of media sharing Web 2.0 technologies, such as the ability to zoom, comment asynchronously on artifacts, and annotate videos or images, and how these features could provide formative feedback and engage learning communities. Both studies aimed to understand how technologies can enhance distance learning.

1. Evaluation in educational technology Done by : Hamed and Saif