These demonstration lessons are taught by practicing teachers and professional developers. These lessons have been extensively field-tested in multiple settings and refined over time, and are generally presented to an audience of participating students and observing teachers.

In this lesson, Tracy’s students are working on Level A of the Problem of the Month, in which they “are presented with a situation that involves making sense of totals and comparison differences.”

In this lesson, the students and I are working on understanding the language of word problems, using the specific words as clues to the mathematical operations embedded in the problem

In this lesson, Sola works with first-grade students on a formative re-engagement lesson about non-standard measurement.

In this lesson, Becca Sherman introduces the “Singapore Bar Model” to students who have never seen it in before. She uses the context of solving division story problems to introduce the model.

In the lesson, Lewis re-engages fourth-grade students after an initial experience the week prior, which was focused on classifying and categorizing triangles.

A professional resource for teachers, coaches, and administrators passionate about improving students’ mathematics learning and performance.

This lesson makes use of “mentor problems” to help students identify and connect mathematical concepts within quantitative problem-solving situations.

This video series looks at how to use students’ natural thinking about rates and how these ideas are developed, expanded, and formalized over a period of time by using the Problem of the Month “First Rate.”

This lesson is a re-engagement lesson designed for learners to revisit a problem-solving task they have already experienced.

This lesson is about ratios and proportions using candy boxes as well as a recipe for making candy as situations to be considered.

In this lesson, she connects her students’ work with prior “mentor problems” — string problems and recipe problems