Beginners pen & ink techniques ~ nice to have your own version on this techniques cause we all draw differently.
Learn a better way to draw trees. So necessary for my students and their puffalump trees!
4 Basic Pencil Shading Techniques - I wish I had this when I was an art major
How do I achieve different effects with pencil ~ stippling, stumbling, shading, smudging and cross hatching.
How do I.....?
nice technique Pencil Sketch
Mark making..this seems simple but also like it could be very effective as an exercise/warm up activity. I think there's a lot of room for creativity in choosing mark designs as well. I like it :)
Art Class Ideas
Bounce Chair by Pedro Gomes, via Behance
 Sketches & Ideation
Pencil Gradient Chart | Shading Techniques with Pencil - need some for school
Drawing ideas or techniques
Tutorial: How to Shade Learn shading techniques, tips and tricks for shading realistic portraits.
RapidFireArt Drawing Tutorials
Google Image Result for http://vr.theatre.ntu.edu.tw/hlee/course/th7_330/img/01-05.jpg
Art - Drawing