Math Vocabulary (Time)

This week for Maths we had to do a Vocabulary list. We could write as many words as we like, I did three, I chose Meridian,Am and Pm. I did some research on what some of these words meant. If it wasn't for my researching skills I would have not found out this information. I put these sentences in my own words so that it isn't copied and pasted, plus I don't copy things. I chose Am and Pm because I have heard those words a lot. I haven't heard of Meridian before so I chose to do research on it.