Open-licensed learning materials have generally been slower to carve out a spot in the K-12 market they have in higher education, where companies like Lumen Learning have found target demographics.

TORONTO — The Ontario government released the province's new elementary math curriculum to better prepare students for work in a rapidly changing world, strengthen math competence and improve grades.

Want to learn more? Sign up for a free five-week email mini-course full of research-backed strategies to help students make sense of math. In Sarah Cuddihy’s 1st grade class at Driscoll School here, ...