Geometric 2-Column Proofs Song (Lyrics only)

This is a song about writing geometric 2-column proofs to the tune of "Last Friday Night" by Katy Perry. It also includes lyrics about line and angle relationships in geometry. My students and I sing this during our line and angles unit in geometry class, once we start writing 2- column proofs. I also use it as a call and response when students get stuck and don't know what to do. My students have said it helps them remember on quizzes and tests. Music makes memory!

Here is the main chorus:

On every proof
Statements must include the names
Reasons support statements made
But give no reference to your shape
On every proof
You must start with what’s given
Then look for the little hints
Definitions are your friend
On every proof

To use in your classroom, just search on YouTube for an instrumental version of "Last Friday Night" by Katy Perry. Print copies of the song lyrics for students to read (I use a half sheet). Then hit “play” and just sing along to the instrumental version. You don't have to be good at it, as long as you are confident and the students see you having fun, they will catch on and start singing, too. (WARNING: original song contains inappropriate lyrics. If you use regular karaoke, and not instrumental, then students will hear the inappropriate lyrics.)