Your child will be randomly assigned (as in the toss of a coin) to either the CTP or a "control" group. The control group will receive standard educational support, but will not receive the one-on-one cognitive training given during the study. After the study is completed, patients randomized to the control group will be eligible to receive the CTP intervention, free of charge, if the parents prefer. All participants will complete standardized cognitive and academic tests at three time points: at the beginning of the study, six months later, and then six months after that. The tests will be given by a very experienced research assistant who will ask your child questions and have him or her complete various paper and pencil tasks or puzzles. Testing at each of the three time points will take about 3 hours. However, the test sessions can be divided into shorter sessions, if necessary for the child's comfort. After each test session, you and your child will talk to a member of the study staff about your child's results and what they mean to your child's progress.