A little while back I posted a successful middle school lesson
I did using oil pastels and wood figures.
The high school art teacher I work with recently used the lesson with her Drawing and Painting I class. The high school students used white 18 x 24 paper (I used 12 x 18 with middle school) and made them really big. The added challenge was to include a complementary color background to make the figures really pop. They are awesome!