The left design used overlap repetition quite heavily. The largest shapes have 1/2" widths and the smallest ones used closer points. The right image was more inventive by incorporating connecting lines around the resulting curves--a forerunner of our next experience!

Both of these parabolic drawings were extra credit work in which all units,(20 in each) were 1/8" measurements. The challenge here is precision, carbon neatness, and of course, originality.

  This beginning unit of Parabolic Line served many purposes. It provided experience for ruler-challenged students. It emphasized the unity between creative enterprise and drawing precision. And here math became a provider of creative construction for students who often suffered from "idea" handicaps. They found it very exciting to see differences in each person's work with everyone using the same sized square. For these non-art students, it was a successful and creative challenge.