Courtesy of C.E. Partch

Figure 216b.—Work of High School Students

Rule 6g. Each component part of a border should be strongly dynamic and, if possible, partake of the main movements of the border.

Any form which causes the eye to move in a given direction is strongly dynamic, and is opposed to the static form which does not cause a marked eye movement. A circle is symbolic of the static form, while a triangle is dynamic. In the designer's nomenclature, the term "rhythmic" may be used synonymously with "dynamic."

Dynamic areas or forms should carry out the upward and onward movement of the leading lines. [Figure 204] shows how closely dynamic areas are connected with nature's units for design motives. A slight change in the contour may transform a leaf into excellent material with which to clothe the leading lines. The curve of force, the cyma, and other curves described in previous chapters should be recognized by the designer and utilized in the contours of dynamic forms.

Courtesy of C.E. Partch

Figure 216c.—Instruction Sheet Problem