Enter a problem, and a unique URL is created. Once shared with others, a group can collaborate by adding questions, comments, solutions, etc. Very easy to use and effective way to solve problems.
Site transforms simple sketch drawings into hard to describe creations that look a bit like the drawing done as a spider web. Printing is done via right-click, but saving is, again, not built-in. Still, scores high on the interestingness scale.
Create online classroom spaces with activities, quizzes, and crosswords; create and manage student accounts; contact students via email; share activities with other teachers. Free account includes up to 30 students and 15 activities.
Practice in addition, subtraction, multiplication, and division, including difficulty levels far beyond basic facts. Free unlimited access for classrooms!
"Cacoo is a user friendly online drawing tool that allows you to create a variety of diagrams such as site maps, wire frames, UML and network charts.
Cacoo can be used free of charge."
Now you can turn to these tools found on the Internet that will help you with tasks such as note-taking, bookmarking websites, highlighting important text during online research, creating mind maps, tracking time, keeping up with appointments, collaborating with others, managing projects, and much more.