Concord Consortium Lab vs Maroon

Concord Consortium Lab is an open-source HTML5 framework for scientific models, visualizations, graphing, and probeware. Authors define Lab Interactives in JSON, combining models with inquiry controls such as buttons, checkboxes, sliders, and graphs. Interactives can be created, shared, and embedded. Listed model types include Next Generation Molecular Workbench, Energy2D, and Probeware, with bar and line graphs available for activities. Lab combines simulations from multiple modeling engines with data collection from sensors and probes; one demonstrated model explores charged and neutral atoms through two-dimensional molecular dynamics. The framework runs on Android, iOS, and the web, requires SVG support, and lists iOS Safari and Chrome for Android among supported browsers. Concord says current desktop browsers provide the best performance, while simpler models may run on tablets and phones. The project uses Simplified BSD, MIT, or Apache 2.0 licensing. Download archives are available, and local content must be served through a web server. Concord says student and teacher data is confidential and not used for targeted advertising.

Maroon is a free, open-source immersive physics laboratory for interactive learning, simulations, and experiments. In its virtual environment, users approach a station and teleport to a room containing the related lesson or activity. Simulations emphasize active learning by involving students in the process. Listed physics activities include Coulomb’s Law, Falling Coil, Faraday’s Law, Huygens’ Principle, Point Wave, Pendulum, Van de Graaff, and Optics. The lab also includes titration and sorting experiments, and supports experiment authoring. In the optics activity, users adjust parameters and receive real-time visual feedback while exploring reflection, refraction, lenses, and fiber optics. Maroon runs in a browser and has downloadable Windows PC and virtual-reality versions. Developed with Unity at Graz University of Technology, the project is hosted on GitHub and welcomes contributions, issue reports, and pull requests. Students can contribute functionality, VR experiences, learning experiences, and physics experiments.