Patent US 6,551,104

The present invention includes an apparatus and a method for teaching relationships between numbers and how to perform certain types of mathematical operations. The system includes a television channel selection device, such as a remote control device with a visual display. The user selects a channel to view, and is presented with a mathematical problem involving the channel number. When the problem is correctly solved, the television switches to the selected channel. If an incorrect solution is entered, the user is given further opportunities to solve the problem before being prompted to a solution. The degree of difficulty of the problems can be adaptively adjusted, depending upon the accuracy of the user's answers.