End-of-semester course activites I am nearing the conclusion of my first course as an adjunct instructor and I'm searching for some useful and engaging activities for reviewing the semester's content as a group. This is a required undergraduate survey business systems course that covers a fairly wide range of concepts and terms, with students representing a variety of majors. I hope to both prepare them for the comprehensive final exam and to reinforce the key ideas that we've covered (between which, ideally, there is significant overlap). Although most of the students are performing quite well, there have been several complaints about the difficulty of preparing for an exam covering such a diverse set of topics.
There are an endless amount of resources for this question available on the internet here is just a handful of ideas


Developing a study-guide yourself is a default option for most lecturers. You include all of the concepts that will appear on the exam plus additional ones that you believe the students should know but that you will not assess. The additional information prevents the students from focusing only on test content.
Jigsaw involves dividing the work for the review by groups. Each group reviews their part. After each group reviews their part you remix the groups so that each group includes all of the pieces of the review. Everyone in each group shares their part to form the complete picture.
Some professors have students make potential sample questions. Developing and answering questions is a useful technique in content mastery. Students are able to articulate what they know through such an approach. 


There are also an endless supply of games that can be modified to help with reviewing, for example


Jeopardy
Wheel of Fortune
Monopoly 
Bingo


This provides some basic ideas.