As national STEM initiatives focus on engineering design as a STEM integrator, a more important concern for K-12 educators should be teaching design fundamentals and using these experiences to help students obtain STEM content knowledge. There appears however, to be little instruction and emphasis on building students' design-sketching skills in technology education, and students will not naturally create sketches unless they first understand the role of sketching in design. Teachers must educate students as to why sketching is important in designing and how it can communicate design ideas to others and help solve problems on paper before they become problems in the prototyping lab. This article offers a presentation to teach design sketching strategies that include: (1) Present the role/purpose of sketching as a way of design thinking; (2) Provide exemplar examples of the design sketches of Thomas Edison and Rube Goldberg; (3) Highlight sketching techniques for using symbols, labels, and multi-views to communicate design ideas; and (4) Use five questions to help students refine their sketches. These approaches to teaching sketching may provide students enough practice to be nimble in sketching and improve their ability to brainstorm in groups.