Exploring airport traffic, usage, hours of operation, and security statistics are all ways to model and bring relevance to math. Students soar while exploring the mathematics of aircraft: dimensions, cargo, fuel, and passenger capacity. Comparing two airports or aircraft would be valuable ways to extend their mathematical journey.

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### Leigh Haltiwanger and Amber M. Simpson

Allowing students to write in mathematics class can promote critical thinking, illustrate an awareness of mathematical connections, and result in clear communication as they share ideas comfortably with peers.

### David Rock and Joel Amidon

A monthly set of problems is aimed at a variety of ability levels.

### Amy F. Hillen and LuAnn Malik

A card-sorting task can help students extend their understanding of functions and functional relationships.

### Kelly S. Chrisler

To better prepare students for their future careers, a fifth-grade teacher designs and implements a lesson that uses spreadsheet software to graph functions.

### Jerra Wood

A flight simulator presents a new STEM slant on students' knowledge of linear equations.

### Melissa A. Stoner, Kristin T. Stuby, and Susan Szczepanski

By implementing high-impact activities, such as designing a school and a skate park, mathematical thinking can be linked to the engineering design process.

### Toni M. Smith, Padmanabhan Seshaiyer, Nathalia Peixoto, Jennifer M. Suh, Graham Bagshaw, and Laurena K. Collins

Two activities help develop students' understandings of rate of change and slope within STEM contexts.

### David Rock and Joel Amidon

A monthly set of problems is aimed at a variety of ability levels.