Kyle does a super job at teaching value to our upper school art classes. See these links below for other examples to this lesson.
http://2soulsisters.blogspot.com/2016/03/maclays-us-art-with-kyle-maurey-value.html
http://2soulsisters.blogspot.com/2017/02/value-painting-with-kyle-maurey-in.html
Here are links to other blogs that have taught value:
http://helloartsy.com/value-scale/
http://www.easy-drawing-lessons.com/value-drawing.html
http://www.teachkidsart.net/make-value-scale/
http://thevirtualinstructor.com/Value.html 
For more detailed directions on this particular lesson by Kyle Maurey please click the links at the start of this post for details and examples.
Value The lightness or darkness of tones or colors. White is the lightest value; black is the darkest. The value halfway between these extremes is called middle gray. Space An element of art by which positive and negative areas are defined or a sense of depth achieved in a work of art .
enjoy, 1969

Kyle, Maclay Upper School Art Teacher taught this lesson last year. See link below:
http://2soulsisters.blogspot.com/2016/03/maclays-us-art-with-kyle-maurey-value.html
 The instructions are located on the Painting Project Rubric in the link above.
Again we have a fabulous Upper School Art Teacher at Maclay. I get to see all of the creative projects they do and so do my middle school kids! This lesson is a great way to teach our high school students about Value. It shows many facets of art. 
 Lesson Tip: Find a photo, use filters on phone to see how they look. There are many photography apps out now that allow you to manipulate digital photos.
I was most impressed with this lesson as everyone was successful at creating it. It is nice when you work in an environment and your Visual Arts Team’s enthusiasm is contagious to faculty, students and parents. Great job, Kyle and your Upper School students. Cathy, Kaitlyn and I are very lucky to have you on our team.

1969