By combining the language of groups with that of geometry and linear algebra, Marius Sophus Lie created one of math’s most ...

The original version of this story appeared in Quanta Magazine. Mathematics started with numbers—clear, concrete, intuitive. Over the last two centuries, however, it has become a far more abstract ...

Lisa Rodriguez teaches Algebra II and Pre-Calculus Honors and is co-director of the Calculus Project at Brookline High. Credit: Javeria Salman/The Hechinger Report The Hechinger Report covers one ...

Students across the country were struggling with math before the pandemic, but the COVID-19 disruption caused their scores on national exams to plummet to historic lows. The struggle is resurfacing an ...