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Class Information
Number: 434/207
Name: Education and demonstration > Mathematics > Arithmetic > Color used in teaching means
Description: Subject matter wherein color is employed to relate to a specific number or set of numbers.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7413440 Hundreds board device and method Aug. 19, 2008
7364431 Educational game Apr. 29, 2008
6814579 Method for educating children Nov. 9, 2004
6758675 Base ten primary teaching kit Jul. 6, 2004
6695618 Multiplication game Feb. 24, 2004
6595778 Base ten primary teaching kit Jul. 22, 2003
6575755 Fraction circle Jun. 10, 2003
6575754 Device and method for teaching mathematical properties associated with even and odd numbers Jun. 10, 2003
6206372 Magic squares game Mar. 27, 2001
6102401 Game of numbers and colors Aug. 15, 2000
6056553 Apparatus for math teaching and self-learning May. 2, 2000
5876212 Apparatuses and kits for teaching mathematics Mar. 2, 1999
5769639 Multi-educational device Jun. 23, 1998
5704790 Methods of playing games which enhance mathematical understanding Jan. 6, 1998
5653594 Educational toy for learning multiplication Aug. 5, 1997
5645431 Teaching apparatus and method for visually representing mathematical expressions Jul. 8, 1997
5571019 Apparatus and method for teaching concepts of mathematics Nov. 5, 1996
5545042 Learning board in combination with solution lists Aug. 13, 1996
5520542 Games for enhancing mathematical understanding May. 28, 1996
5423682 Numbering system teaching aid Jun. 13, 1995
5395245 Elastic pattern abacus and tool for changing arrangement of abacus beads Mar. 7, 1995
5334026 Manual sliding calculator Aug. 2, 1994
RE34498 Manual teaching calculator Jan. 4, 1994
5242171 Game cards for playing a game and for learning arithmetic Sep. 7, 1993
5219289 Mathematical teaching aid Jun. 15, 1993
5167505 Educational aides and methods Dec. 1, 1992
5149269 Manual teaching calculator Sep. 22, 1992
5114346 Teaching means May. 19, 1992
5083793 Multiple choices mathematical game apparatus Jan. 28, 1992
5066234 Educational toy and method therefor Nov. 19, 1991
5018976 Teaching system for enhancing the learning of sets of facts May. 28, 1991
4971560 Teaching aid and method for improving memorization of fundamental facts in the form of equations Nov. 20, 1990
4968255 Electronic instructional apparatus Nov. 6, 1990
4892484 Interconnecting toy Jan. 9, 1990
4838794 Metric block toy Jun. 13, 1989
4812123 Educational device and game Mar. 14, 1989
4713009 Teaching apparatus and method for solving algebraic linear equations Dec. 15, 1987
4637798 Child's doll useful for teaching counting, color identification, and for promoting manual dexterity Jan. 20, 1987
4634385 Teaching wheels Jan. 6, 1987
4585419 Didactic aid for the teaching of any number system Apr. 29, 1986
4560354 Device for teaching decimal math Dec. 24, 1985
4548585 Teaching aid for mathematics Oct. 22, 1985
4452588 Mathematical game apparatus Jun. 5, 1984
4445867 Educational board game May. 1, 1984
4445865 Method of teaching mathematics May. 1, 1984
4422642 Novelty educational puzzle apparatus Dec. 27, 1983
4382794 Instructional aid May. 10, 1983
4372742 Arithmetical teaching aid Feb. 8, 1983
4316612 Educational algebra board game Feb. 23, 1982
4176472 Numbers teaching aid Dec. 4, 1979

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