For those interested in using Drupal to support a teaching and learning space within K12 or higher ed, I have written a book designed to get you started: Using Drupal in Education and E-Learning, from Packt Publishing.
The book is geared for people new to Drupal, with no prior development experience, and no knowledge of writing code. It covers how to build out a teacher and student blog, how to build calendars, create formal classes and informal working groups within your site, how to embed media from external sites, and more. For an overview of what is covered chapter-by-chapter, read the Table of Contents.