5th Grader Game Time

If you don't have a turbo controller, this is going to take a long time.

If you have a controller with a turbo option you can get this very easy. Setup a Battle of the Wits Match on easy vs the CPU. You can adjust the difficultly level when you are in the matchmaking lobby by hitting the 'X' button. Set the Controller to Turbo the A button and put a piece of tape on the A button. Now go to sleep, work, etc.

This will take a while, but it will also help in knocking out the following achievements: Extra-sharp Pencil, Porcelain Lab Rat, Know-It-All, Crystal Sundial, Clean Sweeper and Graduation Cap.

However if you are like me, there was one subject that never came up that the boosting method got right, Cultural Studies. What I did to finish this achievement out, I started a game of Homeroom in local, skipped until it got to the game's subjects and checked if the one I needed was there. If it wasn't I would restart the game. Just do this over and over until you get the last one you need, and just skip through the cinematic.