July 2013. In this issue we look at the crash of an Asiana Airlines in San Francisco. We investigate the math behind why the crash may have happened.

January 2014. In this issue of Math in the News we examine the Polar Vortex.

This is part of a collection of self-scoring interactive math quizzes on a variety of topics.

This is the transcript for the video entitled, Desmos Geometry Exploration: Angles. In this video tutorial angles are defined.

This is the transcript for the video entitled, Desmos Geometry Exploration: Types of Angles I.

This is the transcript for the video entitled, Desmos Geometry Exploration: Types of Angles II.

This is the transcript for the video of same title. Video contents: In this program we explore the properties of angles and planes.

This is the transcript for the video of same title.

This is the transcript for the video of same title.

This is the transcript for the video of same title.

This is the transcript for the video of same title. Video contents: In this program we look at applications of coordinate geometry.

This is part of a collection of video tutorials on the topic of using the Desmos Geometry tools to explore geometric concepts.

This is part of a collection of video tutorials on the topic of using the Desmos Geometry tools to explore geometric concepts.

This is part of a collection of video tutorials on the topic of using the Desmos Geometry tools to explore geometric concepts.

In this program we explore the properties of angles and planes. We do this in the context of two real-world applications.

The observatory in Arecibo, Puerto Rico provides astronomers insights into the structure of our solar system.

Himeji castle in Japan is a marvel of architecture and a startling example of geometry and military science.

In the Canadian Rockies, the Burgess Shale fossils provide a window to prehistoric Earth. Fossil layers are folded into sedimentary rocks.

This is part of a collection of math worksheets that are crossword puzzles of math vocabulary.