Education and demonstration – Mathematics – Arithmetic
Patent
1994-07-18
1995-06-06
Grieb, William H.
Education and demonstration
Mathematics
Arithmetic
434200, G09B 106, G09B 1902
Patent
active
054217326
ABSTRACT:
The present invention is directed to an apparatus and method for teaching addition and subtraction. The apparatus includes a game board, a plurality of movable dowels having predetermined lengths with spaced apart indicia marked thereon, and a number generator such as a pair of dice. The game board has a pair of spaced apart dowel receiving rows corresponding to "in play" and "out of play" positions. The rows may also include a plurality of pegs for supporting the dowels in a vertical position. In addition, optional segmented slots enable the player to lay the dowels vertically end to end on the game board without having them roll off of the board if the game is played on a surface which is not level. The separation distance between adjacent slot segments slots and the indicia associated with the dowels assist the player with the addition and subtraction computations. The game board also includes a plurality of dice receiving spaces and aligned with the slot segments. The method of the present invention is directed to the method of playing a game with the inventive apparatus.
REFERENCES:
patent: 2899757 (1959-08-01), Webb
patent: 3094792 (1963-06-01), Morgan et al.
patent: 3229388 (1966-01-01), Smith
patent: 3597854 (1971-08-01), Trimmer
patent: 3672072 (1972-06-01), Akiyama
patent: 3690018 (1972-09-01), Arroyo
patent: 3708892 (1973-01-01), Graf
patent: 3758962 (1973-09-01), Bagdasar
patent: 3768177 (1973-10-01), Thomas
patent: 3924859 (1975-12-01), Kramer
patent: 3935649 (1976-02-01), Harte
patent: 4014547 (1977-03-01), Gomez et al.
patent: 4029320 (1977-06-01), Hausman
patent: 4061337 (1977-12-01), Callender
patent: 4078318 (1978-03-01), Shivers
patent: 4114290 (1978-09-01), Cooper
patent: 4173834 (1979-11-01), Arzola
patent: 4177581 (1979-12-01), Walker
patent: 4188734 (1980-02-01), Rich
patent: 4212118 (1980-07-01), Baldwin et al.
patent: 4233757 (1980-11-01), Narcise
patent: 4295832 (1981-10-01), Karell
patent: 4360347 (1982-11-01), Ghaznavi
patent: 4382794 (1983-05-01), Preus
patent: 4772208 (1988-09-01), Tsokas
patent: 4778390 (1988-10-01), Marans
patent: 4808111 (1989-02-01), Pratt
patent: 4856998 (1989-08-01), Silas
patent: 4884973 (1989-12-01), Pak
patent: 4927158 (1990-05-01), Lierman
patent: 5039603 (1991-08-01), Pocius
patent: 5076793 (1991-12-01), Aghevli et al.
patent: 5083793 (1992-01-01), Sanford
patent: 5116062 (1992-05-01), Johnson
patent: 5135399 (1992-08-01), Ryan
patent: 5167505 (1992-12-01), Walsh
Grieb William H.
Wascher Rick R.
LandOfFree
Apparatus and method for teaching addition and subtraction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for teaching addition and subtraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for teaching addition and subtraction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-983019