Keith Perkins, foreground, works through an algorithm for calculating ladder rung spacing in Linn-Benton Community College’s math for welders class. Credit: Jan Sonnenmair for The Hechinger Report The ...
FAIRFAX, Va. — Diego Fonseca looked at the computer and took a breath. It was his final attempt at the math placement test for his first year of college. His first three tries put him in pre-calculus, ...