An intriguing portmanteau word. I once had a maths teacher who deserved this title. She was great at maths, certainly, but the magic came in getting a class full of 12 year olds of all capabilities performing years ahead of the norm.
While only teaching one double class a week, on a Friday afternoon when most kids are dreaming of the weekend.
She taught so well that it was all easy and after two years of her tuition we were three years ahead of the national curriculum. It was the high point of my mathematical career, and when I showed my engineer-graduate nephew my schoolbooks, he said he’d not done that stuff until he was 15, 16, 17 …
Let a good teacher strut their stuff and sit back and enjoy the results!