They run dozens of schools that teach Islamic culture along with advanced algebra and American history.
A study by the federal Education Department suggested that students who passed advanced algebra in high school had a better chance of graduating from college.
At City on a Hill, David, 14, is one of nine students in an advanced algebra and geometry class.
Math offerings can range from advanced algebra to "consumer" or "career" math, which teaches how to figure sales tax and good buys.
But by the junior and senior years boys take more sophisticated courses, such as advanced algebra and calculus.
It's not exactly advanced algebra, but babies in the cradle can add and subtract simple numbers.
The math will for the first time include questions on advanced algebra.
For advanced algebra, they were 37 percent and 56 percent.
This inability extended even to those with advanced algebra and calculus behind them.
The male students were surprised to see Harris in their advanced algebra and organic chemistry classes.