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

In fall of 2008, Sally Keyes (math coach), Kamaljit Sangha (7/8 math teacher/department leader) and Cecilio Dimas (7/8 math teacher) developed our first lesson on cost-analysis.

The purpose of this re-engagement lesson was to address student misconceptions and deepen student understanding of area and perimeter.

This lesson is intended to deepen students’ understanding of the connections between different representations of functions—graphs, t-charts, and equations.

This lesson is about trying to get students to make connections between ideas about equations, inequalities, and expressions.

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 was part of a unit on linear relationships and systems of equations

In this lesson, Antoinette’s students are asked to compare a graph and an equation to a real-life situation in which liquid flows out of a container that has a top prism and a bottom prism.

The lesson documented in this set of videos is from Molly’s Enriched Geometry 9th-grade class.

This lesson is about properties of quadrilaterals and learning to investigate, formulate, conjecture, justify, and ultimately prove mathematical theorems.