VoiceThread is a collaborative tool that allows collaboration online. Responses may take the form of video, audio, doodle (drawing) or typing) and also phone (scheduled call which will record). Many ways to accommodate learners. Highly recommend. Free, but I upgraded to Pro version.
K-12 tech tools with lots of helpful information (e.g., media release form). Many many tools categorized by content areas with search engine within. Looks like a very helpful tool for teachers and families. Recommended to me by a grad student.
This App allows users to annotate PDF files. One can insert comments, questions, signatures, etc. Teachers are using it for running records when the leveled texts are put in PDF form.