Young elementary school children, and especially poor readers, are often given the opportunity to read and reread easy material for the purpose of increasing their reading fluency. This practice is designed to give them the feeling of moving smoothly through text, instead of continuing their habit of labored, word-by-word reading. For teachers this is simply a matter of selecting easier-to-read texts and giving children the chance to develop reading habits more like those of older, better readers.
Perez, S. A. (1989). Rereading to Enhance Text Understanding in the Secondary Classroom. Reading Horizons: A Journal of Literacy and Language Arts, 30 (1). Retrieved from https://scholarworks.wmich.edu/reading_horizons/vol30/iss1/8