The goal of Unit 2 is for students to develop an understanding of the purpose and practice of visual representations and communication within engineering in the form of technical sketching and drawing. Students build skill and gain experience in representing three-dimensional objects in two dimensions. Students create various technical representations used in visualization, exploring, communicating, and documenting design ideas throughout the design process. They understand the appropriate use of specific drawing views (including isometric, oblique, perspective, and orthographic projections). They progress from creating free-hand technical sketches using a pencil and paper to developing engineering drawings according to accepted standards and practices that allow for universal interpretation of their design.
Source: PLTW
Source: PLTW