The series highlights the policies and practices of education systems that have shown strong performance or gains on the international assessment.
Plenty of people are weighing in on the latest international data, from U.S. Secretary of Education Arne Duncan to teachers' union leaders and a former governor.
Another report from the OECD, which released PISA results today, describes what top-scoring nations did to produce high levels of achievement among 15-year-olds.
Parents in Singapore are far more likely to engage a math tutor for their child.
In reading, U.S. scores were relatively unchanged, keeping American students in the middle of the pack.
The College Board has overhauled its AP Latin and Spanish literature courses.
A new study finds that most U.S. students have far to go before they can master the common standards.
In face of earlier criticism, the final social studies standards require students to take two U.S. history courses covering all major periods.
Expect lots of analysis, and probably plenty of handwringing, after the international test results are issued next week.
South Dakota becomes the 44th state to adopt the common standards.