Max - I hope I'm not offending you here, but while this technique may be easy to learn, I don't see how you can use it to tie a bowline around a fixed object, which is the main function of a bowline. It may work great for teaching kids how to make a loop in the end of a rope, but if I followed your directions correctly, I think it will make it more difficult for them subsequently to learn how to tie a bowline properly (e.g. around a tree or a fence rail).
Just my $.02 worth.
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"The mind is not a vessel to be filled but a fire to be kindled."
-Plutarch