Education and demonstration – Mathematics – Arithmetic
Patent
1996-08-29
1998-10-13
Smith, Jeffrey A.
Education and demonstration
Mathematics
Arithmetic
434199, 434191, 434348, G09B 100
Patent
active
058203826
ABSTRACT:
A multiplication quizzer that allows a user to learn the multiplication tables. The quizzer includes a base member, at least one first obliquely-forwardly-downwardly-oriented multiplication table disposed on a first side of the base member, at least one second obliquely-forwardly-downwardly-oriented multiplication table disposed on a second opposing side of the base member, and an opaque slide member that is longitudinally slidable along the base member. The obliquely-forwardly-downwardly orientation of the at least one first and second obliquely-forwardly-downwardly-oriented multiplication tables allows the opaque slide member to slid over and hid a product of a desired linear multiplication expression being quizzed of one of the at least one first and second obliquely-forwardly-downwardly-oriented multiplication tables, so that it is not visible while being quizzed, while simultaneously covering and hiding products of three directly subsequent linear multiplication expressions yet to be quizzed of the one of the at least one first and second obliquely-forwardly-downwardly-oriented multiplication tables.
REFERENCES:
patent: 3106029 (1963-10-01), Desmond
patent: 3461572 (1969-08-01), Schmidt et al.
patent: 3491193 (1970-01-01), Bianchi
patent: 3586333 (1971-06-01), Abney
patent: 4218609 (1980-08-01), Chin
patent: 4262939 (1981-04-01), Schoettle, Jr.
patent: 5338203 (1994-08-01), Rheams
patent: 5449890 (1995-09-01), van Neck
Miller P.E. Richard L.
Smith Jeffrey A.
LandOfFree
Multifilication quizzer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multifilication quizzer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multifilication quizzer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-307699