Tau has more merits in its application, but pi is the established standard in industry and education. Is the trade-off of teach-ability of circle concepts worth the subsequent confusion due to pi's omnipresence?

How can both be most effectively taught in order to maximize student's understanding of the use of the circle constant?

Tau ($\tau = 2 \pi$) has more merits in its application, but pi is the established standard in industry and education. Is the trade-off of teach-ability of circle concepts worth the subsequent confusion due to pi's omnipresence?

How can both be most effectively taught in order to maximize student's understanding of the use of the circle constant?

Tau has more merits in its application, but pi is the established standard in industry and education. Is the trade-off of teach-ability of circle concepts worth the subsequent confusion due to pi's omnipresence? Or should both be taught side-by-side?

Tau has more merits in its application, but pi is the established standard in industry and education. Is the trade-off of teach-ability of circle concepts worth the subsequent confusion due to pi's omnipresence?

How can both be most effectively taught in order to maximize student's understanding of the use of the circle constant?