Patent ID: 7275934
Filing Date: 2007-10-02
Classification: G09B

Abstract:
1. An educational apparatus, comprising: a container including a set of defined locations into which a corresponding set of magnets is removably mounted, the mounted set of magnets being arranged side by side in an array underneath a covering surface of the container, each individual mounted magnet representing an individual bit of a binary representation of a number the respresented bits being visually indiscernible through the container covering surface, each individual magnet being removably into the array in one of two distinct orientations, a binary “0” orientation, in which a first magnetic pole faces towards the container covering surface and a second, opposite magnetic pole faces towards the container covering surface, and a binary “1” orientation, in which the second magnetic pole faces towards the container covering surface and the first magnetic pole face towards the container covering surface, the mounted set of magnets being positioned with respect to the container covering surface such that the orientation of each individual magnet in the array of magnets is tactilely detectable through the container covering surface as attraction or repulsion between each individual magnet and a handheld magnet traveling over the container covering surface, thereby allowing a holder of the external magnet to ascertain, through tactile sensation alone, the number represented in binary by the arrangement of the set of magnets in the array.