A mathematical training system includes an electronic abacus device. The
sequence of operating counter beads of the abacus is converted to data
signal by sensors. The data signals are outputted to a computer device
having a monitor display for showing the operation of an instructor's
abacus as well as a student's abacus. The student's operation is recorded
such that it may be reviewed in any selected time by the instructor to
assess whether the student has operated the abacus correctly to arrive at
the solution of a mathematical assignment. The computer may also provide
a warning and a corrective operation to the student when an erroneous
manipulation is detected.
