A Secret, A Song and A Second Chance by Hillary Ascalon

Jerome Braxton, a brilliant and highly respected math teacher, has zero tolerance for nonsense at home and in the classroom, but he is troubled. His three children, all in public school, seem to be learning far more than academics and he desperately wants them out and into a Christian school. Call it luck, fate, or a blessing, he is offered the position of principal at an elite Christian boarding high school. But shortly after his arrival, he discovers there are stains lurking beneath the school's polished surface. Then to exacerbate matters, his beautiful but headstrong daughter, Ayana, is like a magnet for the male students. As she transitions from adolescence into adulthood their strong personalities clash into a war of words when they are forced to confront choices they made. Their once strong bond pulls apart and ignites a firestorm that threatens to rip his marriage and family apart. Eventually, Jerome realizes that he will need much more than his mathematical genius to solve his problems. He will need to call on the Great Problem Solver above.