Two parts today. the first part is for some practice for first year Algebra students. For the original GeoGebra file, click here. The second (see below) is just some doodling.
This may be a cartoon hat, a sketch of the space shuttle from underneath, or a side view of a bell. Whatever you may see or think of, it comes from just moving circles.
If you want to see the GeoGebra file itself, click here.