GIRLS 2 (IMAGE) Rice University Caption Teachers design an iron nanoparticle-based device for water filtration at the NanoEnvironmental Engineering for Teachers course offered by Rice University. A new study shows such courses help teachers gain confidence in relating engineering concepts to their K-12 students. Credit Office of STEM Engagement/Rice University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.