Mathematics examples – shows syntax
Gallery of Examples – all subjects
From h+ Magazine a comprehensive Users Guide to WolframAlpha
Using WolframAlpha in the Classroom
Step-by-Step Math – WolframAlpha blog post
Training Video from Russell Stannard – Teacher Trainng Videos
Mathematics Lesson Plans from WolframAlpha for Educators
10 questions younger children could try – Wolfram Alpha Blog entry
….and on a lighter note from Mashable we have some Easter Eggs!