CometdocsOnline tool for converting PDF files to Word, Excel, PPT, etc. It does a good job of making text editable, but converts SmartArt as static graphics. It would work for small text edits in a presentation where you don’t have the original PPT file, but if you had a lot of SmartArt to rebuild it wouldn’t save much time. It might work better for Excel spreadsheets than the PPT I tested.
The optimal video length is 6 minutes or shorter — students watched most of the way through these short videos. In fact, the average engagement time of any video maxes out at 6 minutes, regardless of its length. And engagement times decrease as videos lengthen: For instance, on average students spent around 3 minutes on videos that are longer than 12 minutes, which means that they engaged with less than a quarter of the content.
Posted from Diigo. The rest of my favorite links are here.