Days of the Week is a educational nursery rhyme. It is a great song to help kids learn all the seven days of the week and the order of the days. It is used in many preschools and schools all over USA and UK.
Why not try something new? Try to start with the name of the day when you are singing the song... And why not sing this song every day? Make it a ritual to sing this in the morning. Cosy, and very smart! :)