The Innovative Technology in Science Inquiry (ITSI) project is a learning portal with hundreds of free, customizable science, math, and engineering activities funded by the National Science Foundation at the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology. The project engages K--12 students in web-based STEM activities using probes and models. With these activities, students 1) investigate problems through hands-on activities, 2) use technology to ask and answer questions, 3) collect and analyze data, and 4) engage in argumentation to defend claims with real evidence. ITSI activities come from the Concord Consortium's collection of classroom-tested exemplars. They follow the 5E Instructional Model and address the three dimensions of the Next Generation Science Standards. In this article, we offer a sample of the many activities available on the ITSI portal, describing one activity in biology and another in physics.
Staudt, C., Burton, C., Williamson, C. & McIntyre, C. (2015). The learning portal: Hundreds of free digital activities using models and probes. The Science Teacher, 82(9), 57-63.