This puzzle originally appeared in Spektrum der Wissenschaft and was reproduced with permission. We’d love to hear from you!

Thirty €1 coins are arranged in a circle on a table. Ten of these coins are fake and a little lighter than the 20 real coins.

Ventura County K-12 test scores might just be beginning to recover from their COVID-19 cliff. On Oct. 10, ...

The tool, called Tutor CoPilot, demonstrates how AI could enhance, rather than replace, educators’ work. The US has a major ...

Students who made math history when they were in high school have now published new ways of proving the Pythagorean Theorem ...

“We familiarized our students with the test taking ... Elementary 3rd-Grade students ranked 1st in Math and 8th overall for ...

The gymnasium at West Morgan Middle School was full of activity on Thursday as 300 students from five middle schools in the ...

Mathematicians are calling for the reversal of loosened teacher certification requirements over concerns that new additions will be ill-equipped to teach numeracy skills. “The people who are going ...

Des Moines Public Schools’ Central Academy has an 8th-grade math class using election methods to teach math modeling, and two ...

On last spring’s exams, 10th graders had to earn at least 25 percent of available points on the math test and 39 percent on the English test to graduate.

The Illinois Report Card 2024 was released and graduation and literacy rates hit record highs, while math woes prompt state plan.

Standardized test scores reveal Coachella Valley schools still face learning loss from the pandemic, but improvements have been made at some schools.