It's really quite simple to implement.
First, you need an Operation game board. Preferably, it still has batteries that work (because that's the kids' favorite part!). My operation board was the Minion themed one, hence why my sentences were Minion related.
Then, you need a list of sentences that you can cut out and stick into those tiny holes all over the board. I have a link to sentences you can use at the bottom of this post. You can obviously make up your own as well to fit your topic. I'm thinking of using mine for verb tenses next week.
Anyway, so this was able to be an independent group activity, I printed out the answers and put them in a manila envelope so that students could check as they went.
Simply put, all the students had to do was take turns "doing surgery" to the Minion (or person, or whatever theme your board is). Once they took the sentence out, they had to rewrite it correctly on their worksheet. They didn't get finished with the time I allowed, however, it worked out perfectly because they couldn't wait to go back in their free time later on!
It would be beneficial to go over the rules beforehand, especially if you have (like I do) some children in the class who like to make up their own rules so they can win.
See how simple that is? If you use it in your classroom, let me know in the comments below how it goes!