First year of the degree program (third year of undergraduate studies)
The third year of the bachelor’s program is divided into two semesters.
First-semester classes are held at ENS Paris-Saclay. During this first semester, weeks of lectures and tutorials alternate with weeks of lab work; a one-week internship in a research laboratory also takes place in November.

Second-semester classes are held at both ENS Paris-Saclay and Paris-Saclay University (Orsay campus).
