Some studies have shown that technology use in education increases motivation and promote interactive learning. Our study was conducted in two science courses during the first academic semester of 2008. Lectures' audio and video were recorded and then published in a course administration tool. To motivate participation an audience response system was used in the classroom. All students used available materials at the course website, at least once a week, and although it is not possible to generate a statistical relation between use and benefits, our results permit to infer that the use of technological tools improve participation and communication.