posted on December 11, 2013 at 12:00 AM
Meet Luis von Ahn, a computer scientist and a professor at Carnegie Mellon who is already at the top of his field at age 30! Learn about one of his most successful ideas—CAPTCHA—a test that humans can pass but computers cannot, which has been used to improve the security of Internet sites. Click
posted on December 10, 2013 at 9:38 AM
The New Year is just around the corner and with it comes new AMERICAN EXPERIENCE films premiering in January and February. Continuing its 25th anniversary season, new episodes kick off on January 7th with The Poisoner's Handbook—an in-depth look at how New York’s first medical examiner transformed forensic chemistry, followed by 1964 on January 14th—an exploration of a year that defined an era (Beatlemania, the passage of the Civil Rights Act, the birth of the Women’s Movement and the transfer of the presidency to...
posted on December 9, 2013 at 12:00 AM
Programming plays a huge role in the world that surrounds us, and though its uses are often purely functional, there is a growing community of artists who use the language of code as their medium. Check out this resource from PBS LearningMedia and view work that includes everything from computer generated art to elaborate interactive installations, all with the goal of expanding our sense of what is possible with digital tools. To simplify the coding process, several platforms and libraries have been assembled to allow coders to cut through the complicated aspects of programming and focus on the creative aspects of the project. These platforms all share a strong open source philosophy that encourages growth and experimentation, creating a rich community of artists that share their strategies and work with unprecedented openness. This engaging lesson is intended for students in grades 9-12. Start coding...
posted on December 5, 2013 at 7:45 AM
posted on December 3, 2013 at 12:00 AM
Are all snowflakes truly unique? What are the physical forces that drive snowflakes to come in so many shapes and sizes? In this lesson brought to you by PBS LearningMediaTM, students build an apparatus that creates conditions similar to a winter cloud and produce their own snow crystals indoors. By watching the snow crystals grow, they learn about the molecular forces that shape ice crystals, and gain a deeper understanding of the states of matter. By exploring our media resources, including microphotographs of real snowflakes, students also learn about molecular forces, the particulate nature of matter, and condensation. Start enjoying the winter...
posted on December 2, 2013 at 12:00 AM
Earth's polar regions may seem remote, but they are an integral part of the entire Earth system. For example, pollution from other areas affects Arctic and Antarctic ecosystems, and changes in the icy landscapes of the polar regions may influence global ocean circulation patterns and accelerate climate change. The fourth International Polar Year (IPY) was a 2007–2008 international campaign to advance polar science and better understand global climate change through an interdisciplinary approach. Learn about the importance of studying the poles through these media resources, adapted from a variety of sources. Explore the polar regions, the changes they are experiencing, and their connections to the rest of the...
posted on November 27, 2013 at 1:10 PM
IPTV had a great time sharing resources and hosting a hands-on booth at the Cedar Valley Family STEM Festival. Families gathered around to get their hands in the containers of oobleck, a non Newtonian fluid that is made of corn starch and water. Educators often use oobleck to teach their students about states of matter and viscosity. While family members played in the substance, others watched the...