Semester 1fall
Building the department map…
Building the department map…
Department paths
A suggested order for the 2 courses on the map, built from prerequisite chains and how often each course has run in fall and spring across the last 12 regular terms. It is not the department’s plan, and it is not a promise a course will run. Confirm against the department’s own advising material.
Semester 1fall
Semester 2spring
Intro tiers at the top, advanced work below; arrows point from a prerequisite to the course it unlocks. Courses from other departments appear where they gate APHY work. Click any course to see what it requires and unlocks without leaving this page; hovering lights up its neighbors. The lists on this page carry the same courses in text form.
Generated from Yale University’s catalog, prerequisite, and concentration data. Spotted an error? Departments can adjust labels, ordering, and notes without a code change, so contact us.
Showing the 2 APHY and feeder courses that have prerequisite links. 95 more APHY courses have no recorded prerequisites. They are listed under Tracks below, not drawn as loose dots here.
Upper-level clusters, grouped by the gateway that opens them.
The deepest prerequisite chains in APHY. These are the routes that take the most semesters to climb.
2 courses deep, ending at APHY 1510
All APHY courses in the Yale catalog
Grade medians are for verified students. Sign in with your school email to see them.
Use your school emailInstructors on APHY sections in Fall 2026, from the registrar's schedule.
No clubs or organizations on record under APHY yet.
This shows once five students share their club memberships.
APHY does not run a page here yet. When it does, its events show up here and on the Yale campus feed.