In Brief: 
Singing several lines of Melodic Bingo Cards side 1 at the same time sounds a little like Gregorian chant. The name Michigorian Chant is a combination of two words: Michiko and Gregorian.
For students to focus and sing a line of music while others sing a different line
Prerequisite Concepts: 
Daily Do, Melodic Bingo and other games in First and Second Steps
Teacher's Role: 
Conduct so the students sing at the same tempo