Sometimes teaching great butterfly means keeping the swimmer shallow rather than pressing deep.
Why do it:
A shallow press on butterfly can help to increase rate by creating less amplitude in the stroke, plus it can help build the ability to breathe on every stroke.
How to do it:
1 - Have the swimmer look slightly forward as the hands enter the water.
2 - When the body rises on the recovery of the stroke, have the swimmer lift their eyes just above the surface on ALL strokes, breathing and non-breathing strokes.
How to do it really well (the fine points):
The goal is to create the most similar stroke possible, whether you’re breathing or not. It’s also to make sure you’re not diving the head down into the water so far that it takes you too long to come back up. Try to create a rhythm with the stroke, and a head position that allows you to feel like you’re bouncing the chest down the pool. Enjoy.
For more videos focus on butterfly eye position, click here - https://gosw.im/2u9jsQK