Overview
The website opens on About, which introduces the cardiovascular sandbox and Teacher/Student modes. Open The Lab enters the simulator at /lab. Join a class opens Student Mode for a session code. Tutorial demonstrates the main features. Learn opens a menu with Academic Halfday and Cases. Play opens The Crimson Circuit, the investigator-style case game. Quiz opens the procedural waveform quiz.
The Help field at the right of the navigation bar searches this library. Submit a question to see relevant articles. If no close match exists, the complete index remains available. The JD monogram is beside Help; the heart logo remains beside the Circulation Studio name.
Moving to another page or reloading can start a new simulator visit. Use Pause when you want to hold a simulation in place for discussion.