Part of Whole

I made yet another math song for my kids. I changed the lyrics to Sam Smith's "Stay With Me". As usual, my kids laughed at me when I sang it to them. I also know that they weren't paying attention to the meaning of my lyrics. It's hard to do that when you're ignoring the song and talking to your friend while your teacher is singing... I digress. I had a friend suggest that I make a CD of my songs and sell it. I only have 3 songs so far. I'd have to make several more songs before I would sell a CD of them. I highly doubt I'll do that but ya never know!