Hmm - online whiteboards always seem like a good idea to me, but I have never been able to sell them.
I like this one because
1) it requires no sign -up and
2)it lets you take a snapshot of the page. Maybe this would work with math notes?
A collection of resources and lesson plans based on teaching history from a passionate place, a nontraditional view, and a social justice view of history.
Classroom idea: Lots of ideas for lessons that could go cross curricular - especially religion and history.
I found this tool, new for me, to enlarge images to poster size. Just upload image , choose size and you get a pdf file you can cut and place as a poster
This is an interesting website. It serves as a dictionary, but I really like the real time aspect of tweets that use the word, as well as images. I also like the statistical use summary.
Classroom ideas. Use this tool to present vocabulary words, both in English and other languages.
dotSUB http://dotsub.com/ This site offers videos subtitled into different languages. Members can do the transcribing.
Classroom idea. Have a class take a favorite video and translate it and load it on dotSUB Use dotSUB original language videos with the original language subtitles as a teaching tool.