Sixth graders Zoe and Amoni, right, work together during Kelly Woodfin’s advanced math class in Union Public Schools. The Tulsa-area school district for about a decade has tried to increase enrollment ...

Troy Superintendent Richard Machesky says that, after initial parent pushback, opposition to detracking of math classes in schools like Boulan Park, pictured here, has gone silent. Credit: Amanda J.

BRAINTREE - Did you like doing math in school? Many people didn't. But a non-profit in Massachusetts is increasing the number of students of color and low-income students in advanced level math ...