An innovative program addresses the digital divide with short, engaging videos modeling mathematic activities sent to families through a free mobile app.
Sabrina De Los Santos Rodríguez, Audrey Martínez-Gudapakkam, and Judy Storeygard
The paper discusses technology that can help students master four triangle centers -- circumcenter, incenter, orthocenter, and centroid. The technologies are a collection of web-based apps and dynamic geometry software. Through use of these technologies, multiple examples can be considered, which can lead students to generalizations about triangle centers.