August 29, 2010 -- From Shoshana, a parent from the United States, who is not affiliated with the site.
This is a free, interactive, Flash-type lesson on diagramming sentences from the Wisconsin Technical College System, and the best internet resource I’ve seen so far on the subject. The lessons take you step by step from diagramming a basic sentence to more complicated sentence structures. A great learning object, especially for visual or kinesthetic learners. This website contains over 2000 of these Flash-type learning objects on a multitude of subjects of interest to middle and high-schoolers.