English to French Other Education / Pedagogy Exams

This is from a guide aimed at some coordinators.
This section is about an activity with teachers as part as a workshop and "he" is the coodinator who is leading the group.
The participants have been asked to make a table with several columns and organize a 2/3-year schedule for their course including the exams.

"He should remind teachers to take into account that in the second year, students will need a period of time to practice exams from **previous sessions**."

I am struggling to render the second part of the sentence.
Thanks for your help!