Try introducing this easy-to-implement strategy that engages student detectives in error analysis and mathematical discourse.

Start with a strategic process to gather and interpret evidence of students’ mathematical understandings and misconceptions; then aim your teaching to address identified needs.

Use these principles for constructing and choosing tasks that blend seamlessly into the school day, guide your teaching, and preserve precious instructional time.

Read about how the authors used many technological tools and platforms to engage a team of educators across the country in this collaborative project.

Via vignettes, look inside first- and fourth-grade classrooms where teachers demonstrate how to use a research-based structure during instruction to choose tasks that elicit different levels of comprehension.

Learn how teachers can use assessment data coupled with observing students’ mathematical reasoning to inform instructional decisions.