Patent Document ID: 8672683
Application ID: 13015500

Base Claim:
1. A method for displaying simulated abacus operations on a computer-driven display comprising: accepting a string of abacus operations; converting the string of abacus operations into a series of different hand positions and finger movements of human hands moving the beads of the abacus to execute the string of abacus operations; generating hand animations of the human hands moving through the series of different hand positions and finger movements; and displaying the hand animations on the computer-driven display, wherein the displaying the hand animations comprises displaying the hand animations but not displaying the abacus.

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Claim 2:
2. The method of claim 1 , further comprising: providing output to a user requesting the user to enter input describing a mathematical operation corresponding to the displayed animations; accepting input from the user; and comparing the input from the user to the string of abacus operations to determine the accuracy of the user input.