Yes, RECITATIONS is a Scrabble word!

Letter values in Scrabble US: R 1, E 1, C 3, I 1, T 1, A 1, T 1, I 1, O 1, N 1, S 1.

Is it a valid word?

RECITATIONS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

written matter that is recited from memory
a public instance of reciting or repeating (from memory) something prepared in advance
a regularly scheduled session as part of a course of study
systematic training by multiple repetitions

Also: course session, class period, practice session.