Growing Problem Solvers provides four original, related, classroom-ready mathematical tasks, one for each grade band. Together, these tasks illustrate the trajectory of learners’ growth as problem solvers across their years of school mathematics.

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## GPS: Good Measures

### Daniel K. Siebert and Monica G. McLeod

## Teaching Is a Journey: Advice for a New Teacher

### Sandy Vorensky

This department provides a space for current and past PK-12 teachers of mathematics to connect with other teachers of mathematics through their stories that lend personal and professional support.

## April Showers Bring May Flowers

### Sherri L. Martinie

Given the numbers and data at our fingertips in this digital age, mathematical and digital literacy skills are imperative when it comes to understanding natural and social phenomena and making good decisions. As teachers we are responsible for helping students make sense of this information

## How Big Is a Leaf? Mathematical Modeling Through STEM Inquiry

### Kym Fry and Lyn D. English

Grade 4 students engage in problem solving through inquiry in an agricultural science context.

## The Life and Times of a Third-Grade Pencil

### Matthew Kandel

Students determine the usable lifespan of a pencil in this mathematical modeling activity.

## Using Fermi Questions to Foster Community

### Kathryn Lavin Brave and Jillian Miller

Two teachers describe how to use Fermi Questions to illuminate the connections between the Standards for Mathematical Practice and the social and emotional learning competencies.

## Introducing Grade 3 Students to Digital Data Exploration

### Daniel Frischemeier

Bar graphs are fundamental to display distributions of categorical variables in primary school. Here is an approach using TinkerPlots™ to create bar graphs on different representation levels in small and large data sets.

## Exploring Relative Size with Relative Risk

### Surani Joshua, James Drimalla, Dru Horne, Heather Lavender, Alexandra Yon, Cameron Byerley, Hyunkyoung Yoon, and Kevin Moore

The Relative Risk Tool web app allows students to compare risks relating to COVID-19 with other more familiar risks, to make multiplicative comparisons, and to interpret them.

## Puddle Play!

### Deanna Pecaski McLennan

## Student Engagement with the “Into Math Graph" Tool

### Amanda K. Riske, Catherine E. Cullicott, Amanda Mohammad Mirzaei, Amanda Jansen, and James Middleton

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