A teacher has 21 red pens. If the ratio of red pens to blue pens she owned was 3:1, how many pens did she have total? It’s one of the word problems sixth-graders at Vera C. O’Leary Middle School were ...

The California State Board of Education approved Math Nation California and STEMscopes California Math in the 2025 Mathematics Instructional Materials Adoption. STEMscopes California Math is available ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Back-to-school time is officially upon us, and by now everyone has seen a Common Core math problem that takes something simple ...

I enjoyed reading your recent discussion with Alex Baron, “How Much Autonomy Should Teachers Have Over Instructional Materials? ” In particular, I was struck by your skepticism about whether ...