Pitsco Education Engineering Education Units Engineering Design & Drafting introduces students to the practice of engineering designs. First, students learn about drafting tools and instruments and basic concepts for using them, such as lettering, measuring, and line conventions. After they master these basics, they move on to dimensioning – including holes – and drawing techniques. Throughout the course, students learn techniques common to all areas of drafting. In both units, students are challenged with drawing exercises. These help teachers assess students on their knowledge of the material by allowing them to demonstrate the drafting concepts and techniques they have learned.