Maybe five times; he was not particularly apt at higher mathematics either.
But how could he possibly begin to explain higher mathematics to an eight-year-old?
"We did a show that told the story of higher mathematics, but through dance theater."
He returned to the Academy as an instructor of higher mathematics from 1896 to 1898.
Latin, science and higher mathematics were taught in the senior classes.
Upon graduation she became an educator and taught higher mathematics.
That could be done without ever trying to explain things in terms of higher mathematics.
In higher mathematics, projections are changes of one thing into something else.
It sure doesn't take any higher mathematics to do that.
Since then this mapping has become an avenue to higher mathematics.