Helps students learn about the incomplete measure.

0:33 Overview
0:54 Lesson
4:37 Guided Demonstration
6:22 Demonstration

A copy of one of these methods is required:

Basic Course Lesson Level 1A:
http://amzn.to/2BRzbt5

Beginner All-in-One Course Book Two:
http://amzn.to/2CbVBRH