| 摘要 |
An apparatus for educational use in the playing of mathematical games utilizes forty-four playing cards. Each of the cards bears an enlarged numeral extending over the ranges from one to forty-four. Each card has the same surface carrying the enlarged numeral encoated wtih three multiplication steps and three division steps whereby one common numeral is used in each multiplication step and as a divisor in each division step. None of the numerals is extended beyond number 12 excepting the enlarged identifying numeral. The users record their proficiency in rapid use of each card, when randomly collected, on a score board having four wheels with a score imprinted thereon. The wheels are rotatably secured to a plate having windows exposing the score value on the wheels. Each of the four wheels are separately identified by a color, equivalent to the color of each four separately decorated medallions. The score achieved by the players results in the awarding of the medallion at the end of the play of the forty-four cards in sequence by the four players. Each player is scored as to speed and accuracy utilizing a time clock which may be started and stopped by the operation of two levers.
|
