When you walk into a math classroom in Charleston County School District, you can feel the difference. Students aren’t just memorizing steps–they’re reasoning through problems, explaining their ...

Consider this sequence of numbers: 5, 7, 9. Can you spot the pattern? Here’s another with the same pattern: 15, 19, 23. One more: 232, 235, 238. “Three equally spaced things,” says Raghu Meka, a ...

This report details the development of a learning progression for the understanding of fractions. The intended use of the learning progression is to support formative assessment practices for children ...