The authors used two technology frameworks to design three seventh-grade mathematics lessons, focusing on opportunities to address collaboration, authenticity, or personalization.

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## Two Technology Frameworks: Their Use in Lesson Design

### Elizabeth B. Harkey, Angela T. Barlow, and Victoria Groves-Scott

## Developing Meaning for Mathematical Expressions

### John K. Lannin, Christopher Austin, and David C. Geary

Explore two ways that algebra students interpret mathematical expressions. Learn instructional tasks to help students develop meaning.

## Technology and Median Income Data: Opening Doors

### Gail Burrill, Joan Funderburk, Becky Byer, and Rachael Gorsuch

Classroom stories show how using technology to investigate the wage gap provided opportunities to develop students’ identities and agency and enabled a classroom culture of sharing and risk-taking.

## 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.

## Visualizing Mathematics Through Knitting

### Emily Dennett

The author uses mathematical concepts to inform her knitting. Her knitting also helps her to experience mathematical concepts in new ways.

## The Case for High School Math Pathways

### Eric Milou and Steve Leinwand

The standard high school math curriculum is *not* meeting the needs of the majority of high school students and that serious consideration of rigorous alternatives is a solution whose time has come.

## People, Place, and Population Predictions

### Ken Keech, Betty Routhouska, and Nicole L. Fonger

Two high school algebra teachers and their students focused on examining population trends affected by the creation of a highway though a thriving African American community.

## Using School Mathematics to Develop Students’ Data Literacy Skills

### Joshua David Jones

To be literate in a society where the information shared online is often exploited, learners should be exposed to multiple aspects of contemporary predictive modeling. Explore a lesson in which students learned an algorithm used in practice to automate the process of making recommendations.

## Teaching Word-Problem Solving through Tape Diagrams

### Xiaobo She and Timothy Harrington

Get familiar with this visual instructional tool to help students make sense of mathematical relationships and select suitable operations for word problems at varied grade levels.

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Routines for Learning Modeling Practices *and* Content

### Rebekah Elliott, Elyssa Stoddard, Megan Brunner, and Jenny White

The authors share a teacher-designed mathematical modeling routine geared to support teachers and to leverage opportunities for their students in learning important modeling practices and mathematical content.