DALLAS — When Tha Cung looked over his sixth-grade class schedule, he took notice of the math block. He had been placed in an advanced class. “I didn’t know ‘honors’ even existed,” he said. Tha was ...

You may not have taken a math class for many years, but you prob­ably remember the equa­tion “y = mx + b.” If pressed, you could prob­ably recall the qua­dratic equa­tion. And you might know that the ...

DALLAS — When Tha Cung looked over his sixth-grade class schedule, he took notice of the math block. He had been placed in an advanced class. “I didn’t know ‘honors’ even existed,” he said. Tha was ...