This is an activity I learned about when I was student teaching. I loved it so much I created my own version of it. This can be used to introduce time. It is a clock that has the minutes on a paper behind the hours. So the students can flip the hours back and see what the minutes would be. I also create it to the color of the hands match the colors of the paper for the hours and minutes.
This file contains everything you will need to make this clock, including blank clocks if you want your students to write the hours and minutes themselves.