This route stays lightweight on purpose. Pick a subject, a confidence level, and a session shape, then the page maps you into the existing subject, topic, track, and concept graph without a separate onboarding system.
Start something new
This chooser routes into the current subject pages, topic maps, starter tracks, and best-first concepts. It does not create a second content graph.
Subject interest
Confidence level
Session shape
Use the shortest authored chemistry starter path when you want the first few moves chosen for you.
Start with one strong chemistry concept when you want the first move to stay visual and low-risk.
Use the Chemistry subject page when you want starter tracks, topics, and best-first concepts framed together before choosing one.