Cathy Hicks worked with our Lower School art students at Maclay to create a mini canvas collaborative piece.

They used:
Paint Brushes
Mini Canvas
Paint (the dryer the better) this created a cool texture effect
Pour On
Reference Heart Shapes / Colors
Trays
*This is a several step process so if you teach you need at least 1-2 weeks to complete within your art classroom.

Just a few items that were covered in class discussions during the hands-on process:
Value
Texture
Color
Tints / Tones
Shape
Space
Collaboration

For more information on our Maclay School Auction check out this blog post:
http://2soulsisters.blogspot.com/2017/01/surfs-up-mosaic-surfboard-maclay.html 
Amazed as usual as what all Cathy can produce with her kiddos! Follow us on Twitter
 @MaclayFineArts
to check out all that our Maclay Visual Arts are doing! We would love to have you stop by.
1969
I found a wonderful resource for this lesson here at
http://arteascuola.com/2013/09/exercises-in-shade-and-gradations-to-the-new-folders/
Check it out. It has all the details. This is a great classroom lesson or could easily be incorporated into a sub lesson.
Good Luck!
Thanks for stopping by, 1969