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## Puddle Play!

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## Student Engagement with the â€śInto Math Graph" Tool

We introduce the Into Math Graph tool, which students use to graph how â€śinto" mathematics they are over time. Using this tool can help teachers foster conversations with students and design experiences that focus on engagement from the studentâ€™s perspective.

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## Developing Spatial Skills through Mental Rotation Activities

Success in STEM fields depends largely on robust spatial skills, in particular on the ability to perform a mental rotation. Given that this ability can be nurtured, this article includes examples of diverse relevant tasks appropriate for grades 6â€“8 students.

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## Launching a Mathematical Modeling Lesson

Five teacher discussion strategies and outcomes of studentsâ€™ responses to each are illustrated with examples.

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## Visualizing Complex Roots of a Quadratic Equation

A quadratic equation was the basis for activities involving both concrete and technological representations.

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## Cultural Connections: Exploring the Mathematics of Qatayef

Students grapple with the problem of finding the volume of two different folds of a traditional Levantine dessert using either geometry or calculus.

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## Conditional Reasoning Online with Mastermind

As mathematical patterns become more complex, students' conditional reasoning skills need to be nurtured so that students continue to critique, construct, and persevere in making sense of these complexities. This article describes a mathematical task designed around the online version of the game Mastermind to safely foster conditional reasoning.

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## Escape Room Math: Luna's Lines

An escape room can be a great way for students to apply and practice mathematics they have learned. This article describes the development and implementation of a mathematical escape room with important principles to incorporate in escape rooms to help students persevere in problem solving.

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## Investigating Using Lesson Study

Our middle school mathematics department used lesson study to investigate how to introduce fractions division to our sixth-grade students. We highlight our learnings during the Study and Plan phases, describe our observations during the lesson, and provide tips for educators interested in using lesson study to study their own content.