High School Art Watercolor Painting Unit. Pages 1-3 consists of an introduction, unit vocabulary and practice tints and shades color chart. Page 4 provides a diagram for developing a 12" x 18" watercolor techniques chart. Pages 5, 6 and 7 contain instructions for watercolor paintings 1, 2 and 3. Pages 8, 9 and 10 provide rubrics for each of the three watercolor painting projects in the unit. Finally, page 11 includes a unit vocabulary key. Everything needed to teach a high school level watercolor unit is in the unit packet.