Positive and negative shapes. My Zentangle hummingbird. This is an example for my students' project. This can be use for several concepts: positive / negative space, reflection, line and shape, etc. I did this project with my grade students.
Art Beginner course for high school. Art basics with presentations, worksheets, lesson plans, and rubrics. Course lessons are focused on Elements of Art and Principles of Design. Great resource for art teachers by artist and teacher Julianna Kunstler.