This links to the work of the Technology Enhanced Learning of Science Center, an NSF-funded Center for Learning and Teaching. I was the Virginia partner in TELS, which is led by UC-Berkeley and the Concord Consortium. We are investigating student learning of standards based, abstract topics in science where the use of models, visualizations and simulations is likely to most positively impact student learning. TELS instructional units are usually a week long, involve heavy usage of the computer (students in pairs), and promote authentic inquiry for both students and teachers. We currently have projects for Middle School Earth Science, Life Science and Physical Science; High School Biology, Chemistry, Earth Science and Physics. This project ended August 2008.