Kathy Richard, who teaches second grade at Gilbert Heights Elementary in Portland, is a former music teacher. When she started teaching the new lessons from Bridges Supplement Set D2, Measuring Length in U.S. Customary Units, she couldn't help herself from singing the old Inchworm song in class. Soon, her students joined in, and the whole class fell in love with the song. Kathy decided it would be fun and motivational to have the kids record their own rendition of this classic.