For my first year I used this video for just singing the days and the students really enjoyed the video (especially when the banjo puppet showed up). This year I decided to learn the dance and teach it, I really wasn't sure if my students would try to dance along but they all loved it and really tried to nail the moves. The dance is simple with every day having a move and I would walk in place for "Sunday comes again." If you are a confused about the moves please look at the attached picture (I tried my best).
video: https://www.youtube.com/watch?v=FVKEnbNNNmM
I recommend slowing the video down to .8 speed at first and then working up to .9 speed. I think .9 is the perfect speed to sing the days and dance at the same time, full speed proved a bit difficult for students to do both. If your school doesn't allow Youtube, you can download the video and show that, but you may not be able to adjust the speed.
This is such a cute DotW song and dance! I think it would also work well for my kindergarten class.