When I try to photograph a beautiful full moon with my phone

I was told by my astronomy teacher once that the moon actually travels in a figure eight pattern around the Earth and we just draw it as a circle because it's easier to explain. I don't know if he was correct or not, or if that was just a technique to see if anyone was listening and I've never been able to find anything that confirms or disproves his statement, but it's interesting to think about.