This document is an instructional module package prepared in objective form for use by an instructor familiar with the principles of liquid flow and the methods of measuring open channel and fuel pipe flow rates. Included are objectives, instructor guides, student handouts, and transparency masters. The module addresses the basic flow formula, and measurement of flow rates using a batch method, parshall flume, weirs, partially filled pipe, venture meters, magnetic flow meter, rotometer and ultrasonic velocity sensing methods. (Author)