In prior research and development, the project team developed PocketLab, a set of web-based hands-on science simulations for middle school classrooms. With this Phase I funding, the team will develop and test a prototype of CloudLab, a classroom management platform to extend the functionality of PocketLab. The prototype will include a portal so that a class of students can collaborate on experiments, a lab notebook to analyze experimental data with graphing tools, and a teacher dashboard to monitor student progress in real time. In the Phase I pilot research, with six middle school teachers and 150 students, the project team will examine whether the prototype functions as planned, whether teachers are able to integrate it within the classroom environment, and whether students are engaged while using the prototype.