Value and Shading

I have used Google Docs to publish a worksheet I made for a later drawing lesson- Value and Shading.

I like to discuss the meaning of "value" with students and what shading does to enhance a drawing prior to giving them the worksheet. the definitions are on the worksheet and they come form artlex.com.
I also try model a simple value scale, some shading, hatching and cross hatching on the board for students. Hatching is intersecting vertical and horizontal lines while cross hatching is intersecting diagonal lines. Modelling or showing examples to the students gives them visual reminders rather than just oral explanations.

The link should take you to the document and you should be able to print it out for classroom use.
Shading and Value