This is the 344th most frequent German word.
jeweils
"Jeweils" means "each," "respectively," or "in each case."
In this context, 'jeweils' is used to indicate that each member of a group (the students) receives an equal share of something (time).
Die Schüler bekamen jeweils zehn Minuten, um ihre Projekte vorzustellen.
The students were given ten minutes each to present their projects.
Here, 'jeweils' signals the repetition of an action (discussion of a new topic) during different instances of an event (the meetings).
Bei den Treffen wird jeweils ein neues Thema diskutiert.
At the meetings, a new topic is discussed each time.
'Jeweils' in this sentence denotes that an action (awarding a prize) happens for each iteration of an event (a competition).