I just wanted to share a funny story about my DS. I printed off the EXPLORE sample tests and he was doing the math one. To be honest I wasn't sure he'd understand some of the math but he did one on probability with no problem. I didn't even know he knew about probability and so I asked him how he knew how to answer the question. He said "oh they do probability on Cyberchase!" LOL!!!! I guess you can increase your FOK anywhere!!!! :-)