Canvas allows you to produce hand-draws online (e.g, maps, graphics): you can create your own designs with Canvas.
Your drawings are synced to your Google Account, so you can get to them from your Chrome browser. It allows you not only to create your drawings but also to share them with your colleagues or students.
Group collaboration is structured on five principles of collaboration: positive interdependence, individual accountability, explicit instruction in social skills, promotive interaction, and group processing.
First, the group tasks need to be structured so that all group members feel dependent on each other in the completion of the task, thus promoting positive interdependence.
Second, for individual accountability, the teacher needs to assure that each group member feels responsible for his or her share of work, by providing opportunities for individual reports or evaluations.
Third, the students need explicit instruction in social skills that are necessary for collaboration.
Fourth, the tasks and seat arrangements should be designed to promote interaction among group members.
Fifth, time needs to be allocated to group processing, through which group members can evaluate their collaborative work to plan future actions.
Using these principles for cooperation leads to gains in learning processes and achievements of students.
Use cases/examples of usage: (tutorial)
Strenght: Online and open-source tool that enable users to hand-draw without restriction.
Weakness: You cannot use it offline.
People opinion about the tool: https://community.canvaslms.com/t5/Canvas-Question-Forum/bd-p/questions
Similar Tool: GoodNotes; OneNote; Samsung Notes; Notability; Bear.
Technical and operational requirements: PC or mobile.
License Tool: Open source.