Measuring Your World is five-DVD series that focuses on the subject of mathematics, ecology and statistics. This program discusses mathematical relationships between statistical data, such as averages, means, modes, media, and how they are calculated. It focuses on how each of these mathematical tools can be used to make predictions about future data, and follows the activities of the "Students for a Better Earth" group as they sample the air pollution levels of their community. Grades 4-7. 20 minutes on DVD.