Really important – talk to your students about how to study not just what to study.
A common theme of my own – Mini Tests / Retrieval Practice.
For valuable resources to support the techniques described here, see: The Learning Scientists. See their blog for more information and note the excellent downloadable materials on study strategies including Retrieval Practice. Note this meta-analysis of 217 Retrieval Practice Studies.
..and appropriately – last words from a student: