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Persevering Through Problem Solving with Open Middle: Order of Operations

In this lesson, students will engage in a low-floor, high-ceiling Open Middle task that challenges students to think critically about order of operations. Suggestions for facilitating this lesson based on Building Thinking Classrooms are provided, as well as extension questions and questions for reflection.
March 2024 Cover

Supporting Black Students’ Mathematical Identity

6-8, 9-12
In this lesson, students will explore the historical and contemporary contributions of the continent of Africa, which includes its resources and people. Through engaging activities and discussions, students will develop a strengthened mathematical belonging by connecting with the rich heritage of Africa, fostering a sense of pride and recognition in their own black identity.

Understanding and Comparing Three-Digit Numbers


In this lesson, students will learn to make math drawings for hundreds, tens, and ones and connect the drawings to numerical symbols on layered place-value cards.  Students will then compare two-digit and three-digit numbers, justifying their choices using math drawings and/or the layered place-value cards to show their classmates their reasoning.