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## What is your body mass index?

The number of people who are obese or overweight has dramatically increased throughout the world in recent years. This article presents an activity in which fifth- and sixth-grade students analyzed body mass index (BMI) and planned a diet accordingly; an interactive simulation supported the creation of a healthy eating regimen. iSTEM (Integrating Science, Technology, and Engineering in Mathematics) authors share ideas and activities that stimulate student interest in the integrated fields of science, technology, engineering, and mathematics (STEM) in K–grade 6 classrooms.

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## Disabilities in Written Expression

Classroom activities can be part of an effective teaching strategy to help children whose math performance demonstrates a learning deficit.

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## Solutions: The pizza party

Each month, this section of the Problem Solvers department showcases students' in-depth thinking and discusses the classroom results of using problems presented in previous issues of Teaching Children Mathematics. The March 2015 problem challenges students to determine how many pizzas they need to order for a class party. During this investigation, students have the opportunity to explore the meaning of division and to examine, compare, and connect additive and multiplicative strategies that may be used to solve this division problem.

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## A critical focus on the M in STEAM

Contributors to the iSTEM (Integrating Science, Technology, Engineering, and Mathematics) department share ideas and activities that stimulate student interest in the integrated fields of science, technology, engineering, and mathematics (STEM) in K–grade 6 classrooms. The authentic STEAM project described here was born of a critical need of one child in the community. Using the Design Thinking framework, a class of fourth graders embarked on what was arguably the most meaningful school project of their lives. We place an explicit focus on the M in STEAM.

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## Dots and Squares

Postscript items are designed as rich “grab and go” resources that teachers can quickly incorporate into their classroom repertoire with little effort and maximum impact. This article adapts the classic Dots and Squares game into fun ways to encourage problem solving and computation. Variations include ways to adapt the game to different levels.

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## You take the cake

These themed-based problems tempt us to dive into the sweetness of problem-solving mathematics throughout the grade levels. Enjoy exploring, problem solving, patterning, data collection, and data analysis to lead your students to the recipe for mathematical success.

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This month, we look at how road trips are full of fun opportunities to explore patterns and combinations, departure and arrival times, and rates and ratios. This department features collections of short activities focused on a monthly theme that aims for an inquiry or problem-solving orientation that includes at four activities each for students in the K–2, 3–4, and 5–6 grade bands.

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## Assessments: Numbers, Context, Graphics, and Assumptions

Learn how to modify classroom evaluation items to avoid potential difficulties that limit a teacher's insight into students' mathematical understanding.

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## Winning the “Hundred Years' War”

Arm your students for victory in the age-old battle to master subtraction with regrouping.

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## Empowering Mathematicians through Modeling

Real-life scenarios embedded in social, cultural, historical, and political contexts can help bridge a gap between critical mathematics education and mathematical modeling.