Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: La Function Cuadratica. Parabolas.
This is an interactive activity to explore the second-degree polynomial function. It goes from the simplest case, y=x^2 to different translations.
BBC
Bbc: Colombia's Kidnap Culture
An article that examines some of the recent kidnapping cases in Colombia. The article gives details on who was kidnapped and why. (November 12, 2002)
Science Education Resource Center at Carleton College
Serc: Detecting El Nino in Sea Surface Temperature Data
Through data analysis and observations of patterns, young scholars learn about normal seasonal sea surface temperature variation as well as extreme variation, as in the case of El Nino and La Nina events, in the equatorial Pacific Ocean.