High school math, and algebra, in particular, is in crisis. Although some students thrive on the pathway to calculus, most do not. Algebra I is the single most failed course in American high schools.

Students in Kristen Gonsoir’s classroom at Groton Area High School in Groton, S.D., spend a lot of time solving equations together. Early this school year, they passed almost an entire period working ...

UC San Diego says it’s struggling to deal with a large and growing number of freshmen whose math skills are below middle-school level, leaving many unprepared to thrive at an institution famed for its ...

The Duolingo math app will cover basic third and fourth grade level mathematics, including multiplication, division, fractions, angles, and area measurements. A Duolingo language lesson looks more ...

The cognitive flexibility that comes from being multilingual can give students a boost in math—if teachers know how to build on English learners’ strengths. Seventy-seven percent of 8th-grade ...