One of my most fascinating students this year created this.
He has a special spot in the classroom. It's a secluded area between my teacher cabinet and the back of a bookshelf. I had not intended for it to be used for anything - I was just trying to minimize the space around the teacher cabinet. However, it has been perfect for him. When things begin to overwhelm him he can head to that area. We have left a variety of math manipulatives there for him; pattern blocks, unifix cubes, pentominoes, etc. He has created some astounding patterns and designs with these manipulatives. This flag was one of my favorite of his creations.