Below graphics from Wenger, White and Smith’s Digital Habitats blog — specifically from their posting entitled, “Putting our diagrams to work”

.

http://technologyforcommunities.com/wp-content/uploads/2010/07/fig1-1-LearningActivities1.png

.

http://technologyforcommunities.com/wp-content/uploads/2010/07/fig-5-1-tools-landscape1.jpg

.

http://technologyforcommunities.com/wp-content/uploads/2010/07/orientations-blank1.jpg

.

http://technologyforcommunities.com/wp-content/uploads/2010/07/tool-polarities-map.jpg