Awesome Chalk drawing - Using chalk and some shadow techniques, it looks like an old parchment page from his journals! In the Waldorf classroom, it is traditional for the class teacher to create an artistic rendering that honors the current subject being taught.
Anthroposophy 101 eCourse by Dr. Rick Tan of Syrendell for Little Acorn Learning. Online 5-weeks, work at your own pace. Easy to understand and wonderful for Waldorf parents, teachers, homeschoolers and more.