Khan Academy

On Khan Academy, you can earn energy points and badges by watching videos and answering math problems.You can also create and use your and other people's programs, and by doing so earn votes. Votes can actually earn you badges! So please give it a try. My username there is mathboy1, obviously. The Khan Academy staff are trying to make problems for other subjects, and if you decide to join, please post your usernames here!

                                                                                         Your admin,

                                                                                            mathboy1