"Whoops!" is basically a modified "Sorry!" (™) that uses intervals to tell players how many spaces they can move. This builds off of my Chutes and Ladders interval game which also teaches unision, major seconds and major thirds. This game teaches unisons, major seconds and major thirds as well, but adds perfect fourths and fifths. It can be played with 2-4 players/teams, and you can use the intervals either visually or auditorily. You can control the length of play by choosing how many player pieces to use. It can also be played in small groups in a classroom setting. I also think that this makes excellent practice/homework, especially if the student has a parent or sibling that can help him/her by playing or singing the intervals.