INTERIOR DESIGN 1 Sem. (9-12) No Prerequisite. Interior Design is a beginning course for students who are interested in designing a variety of spaces. Our course work will include drawing elevations, designing floor plans, creating concept boards, creating patterns, and product design. We will study the elements and principles of design along with color theory. Students in this class are expected to participate in discussions, complete practice exercises, and write critiques of room designs.