This document contains five units for a course in computer numerical control (CNC) for computer-aided manufacturing. It is intended to familiarize students with the principles and techniques necessary to create proper CNC programs manually. Each unit consists of an introduction, instructional objectives, learning materials, learning activities, and assignments. The units cover the following topics: Cartesian coordinates, absolute and incremental positioning, basic manual programming, polar coordinates and cutter compensation, and programming the Heidenhain controller. An appendix contains blank forms for CNC tool lists and operations and for numerical control programs. (KC)