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• Number Sets and Systems
• Seventh
• Algebra
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## Avoiding the Ineffective Keyword Strategy

Try these meaningful alternative approaches to helping students make sense of word problems.

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## Emphasizing the M in STEAM activities

Modifications to a first- and second-grade STEAM activity, Elephant Toothpaste, highlight ways to emphasize mathematical thinking by running multiple experiments, posing mathematical questions, and having students make both qualitative and quantitative observations. Contributors to the iSTEM department share ideas and activities that stimulate student interest in the integrated fields of science, technology, engineering, and mathematics (STEM) in K–grade 5 classrooms.

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## May 2019 Calendar and Solutions

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## Problems

A monthly set of problems targets a variety of ability levels.

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## Supporting Group Work with Mathematically Meaningful Roles

Three seventh graders, working as a small group in their math class, had a conversation about adding and subtracting integers. The students discussed the challenges they faced in the assigned task.

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## Threatened to extinction

Hundreds of species of animals around the world are losing their habitats and food supplies, are facing extinction, or have been hunted or otherwise negatively influenced by humans. Students learn about some of these animals and explore multiple solution strategies as they solve this month's problems. Math by the Month features collections of short activities focused on a monthly theme. These articles aim for an inquiry or problem-solving orientation that includes four activities each for grade bands K–2, 3–4, and 5–6.

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## Building Sets, Video Games, and Scatterplots

Explore the creation of a unique problem-based learning (PBL) experience.

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## LEGOs: Linking Units, Operations, and Area

Use those multicolored linking bricks to help students connect measurement with an understanding of number and operations as well as fractions.

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## Life in A-town

Welcome to A-town! All the residents of A-town have names that start with the letter A! Could you live here? Join these students as they solve problems around their neighborhood. Remember, math is everywhere.

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## The No-to-Yes Project: Conquering Common Algebraic Mistakes That Drive Us and Our Students Crazy

Help students stop making typical, persistent errors related to misconceptions about exponents, distribution, fraction simplification, and more.