This pattern-related problem, appropriate for high school students, involves spatial visualization, promotes geometric and algebraic thinking, and relies on a no-cost computer software program.

# Browse

## Algebraic Thinking in the Context of Spatial Visualization

### Arsalan Wares and David Custer

## The Hidden Beauty of Complex Numbers

### Juan Carlos Ponce Campuzano

## A Radian Angle Measure and Light Reflection Activity

### Hanan Alyami

During a Desmos activity, students adjust the measures of angles in radians to reposition a laser and a mirror so the beam passes through three stationary targets. The Radian Lasers activity can be extended to simulate project-based learning.

## 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.

## Escape Room Math: Luna's Lines

### Micah S. Stohlmann

An escape room can be a great way for students to apply and practice mathematics they have learned. This article describes the development and implementation of a mathematical escape room with important principles to incorporate in escape rooms to help students persevere in problem solving.

## Now: The Metamorphosis of the Educational World

### Zachary A. Stepp

“It's a YouTube World” (Schaffhauser, 2017), and educators are using digital tools to enhance student learning now more than ever before. The research question scholars need to explore is “what makes an effective instructional video?”.

## Modeling a Bouncing Ball with Exponential Functions and Infinite Series

### Tim Erickson

We modify a traditional bouncing ball activity for introducing exponential functions by modeling the time between bounces instead of the bounce heights. As a consequence, we can also model the total time of bouncing using an infinite geometric series.

## Mathematical Art: Lost in Translation

### Siddhi Desai and Farshid Safi

Traditionally, high school geometry has focused on the study of two- and three-dimensional figures, postulates, measurements (NCTM, 2018). Through connecting geometry, art, cultures, and mathematics, we can create opportunities for students to experience the joy and beauty of mathematics that can help to foster and/or extend other connected concepts.

## Exploring Klein Bottles through Pottery: A Steam Investigation

### Christopher E. Smith and Jana N. Paré

Mathematics and art share perspective and prominence in this collaborative learning experience.