In America’s search for education equality, we’ve watered down math instruction, argues Jacob Vigdor in Education Next. That’s hurt high achievers without helping low achievers.
In the early 20th century, American high-school students were starkly divided, with rigorous math courses restricted to a college-bound elite. At midcentury, the “new math” movement sought, unsuccessfully, to bring rigor to the masses, and subsequent egalitarian impulses led to new reforms that promised to improve the skills of lower-performing students. While reformers assumed that higher-performing students would not be harmed in the process, evidence suggests that the dramatic watering down of curricular standards since that time has made our top performers worse-off.
. . . America’s lagging mathematics performance reflects a basic failure to understand the benefits of adapting the curriculum to meet the varying instructional needs of students.
When Charlotte-Mecklenberg schools placed below-average-performing eighth graders into algebra, they proved more likely to pass algebra by 10th grade, but less likely to pass geometry or advanced algebra ever, Vigdor notes. By contrast, Chicago improved success rates for below-average students by giving them a “double dose” of algebra tailored to their needs.