Patent ID: 7300286
Filing Date: 2007-11-27
Classification: G06C,G09B

Abstract:
1. An educational tool, comprising: a frame having a first side and a second side; a rod extending between said first side and said second side of said frame; a plurality of beads being slidably positioned on said rod; a first reckoning bar being slidably secured to the top of said frame, said first reckoning bar bearing first indicia, for counting said beads, in the form of a series of whole numbers increasing in a direction from said first side to said second side of said frame; a second reckoning bar being slidably secured to the bottom of said frame, said second reckoning bar bearing second indicia, for counting said beads, in the form of a series of whole numbers increasing in a direction from said second side to said first side of said frame; a first slide being slidably secured to the top of said frame for selectively covering said first indicia on said first reckoning bar; and, a second slide being slidably secured to the bottom of said frame for selectively covering said second indicia on said second reckoning bar.