https://www.northstarmontessori.com/programmes/northstar-aquatics.html

Have a look at this interesting web page about Northstar Swimming Lessons. Their swim programs emphasize mastering each item first before learning new ones. They are firm believers of 'Repetition' is key and would like to assist not only obtain end goals but also be good at it while having fun. They focus heavily on stroke development and really develop the fundamentals of each stroke. Considering that there are more levels than what others are used to, they clearly encourage the candidates and instructors to work together and progress to get through multiple levels during the same session.