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Document Title 

8734158 
Methods and apparatus for teaching reading and math skills to individuals with dyslexia, dyscalculia, and other neurological impairments
The present invention includes a phonetic alphabet with clarifiers and modifiers that aid in the teaching of reading skills to individuals with dyslexia, dyscalculia, and other neurological... 

6926530 
Game apparatuses and methods for use in teaching the addition and subtraction of positive and negative numbers
A game apparatus and a method for assisting in teaching the addition and subtraction of positive and, especially, negative numbers, are based on the Null Theory of Adding and Subtracting Positive... 

6811402 
Method of playing a mathematical game
A method of playing a mathematical game to calculate a target value includes generating the target value randomly, generating a plurality of calculating numbers to be used to calculate the target... 

6790118 
Block set for educational purposes
The object of this invention is to provide a block set for educational purposes. The block set features that a plurality of block units of the same color are integrated so as to build a block bar,... 

6755655 
Electronic educational toy appliance and a portable memory device therefor
An electronic toy appliance for use with interchangeable graspable objects such as blocks or tiles, the toy appliance designed to stimulate the development of a child's mind using audio feedback. 

6619661 
Jigsaw puzzles for practicing arithmetic
Jigsaw puzzles for use by young children to practice elementary arithmetic. Each puzzle is circular and includes a center piece, four middle ring question pieces, and twelve outer ring answer... 

6575755 
Fraction circle
A mathematical teaching aid includes a plurality of sectional pieces representing fractions of a circle. The pieces are preferably colored corresponding to respective fractions, wherein fraction... 

6575756 
Mathematical teaching apparatus
A set of blocks used as an aid for teaching mathematical concepts, in which blocks of different sizes are provided with characteristic dimensions that bear a relationship to preselected numbers in... 

6513708 
Mathematics teaching system
A mathematics teaching system for visually and physically teaching a student how to perform multiplication and division calculations in a simple to understand format. The mathematics teaching... 

6206701 
Mathematical teaching apparatus and method
A mathematical teaching apparatus comprising block elements that fit inside a block element container. The block element container will not close until the proper number of block elements are... 

6116603 
Apparatus and method of playing a math capturing and recapturing game
A multiplication capturing and recapturing game system is disclosed. The system comprises 2 equilateraltriangular game boards, a pair of eightsided dice and 36 playing pieces. The game can be... 

6065971 
Finger ring counting device
A finger ring counting device enables persons to accurately count prayers while saying the Rosary. The counting device is embodied in a ring structure which can be inconspicuously worn on the... 

6062944 
Toy ball as teachware
A toy ball as teachware includes a rubber ball body, a ballshaped Velcro layer covering on the ball body, and a plurality of Velcro pieces written with letters, characters, symbols, figures, etc.... 

5967787 
Educational display with a clock and with numeral and date blocks accompanied by a base 10 mathematical apparatus
The invention herein relates to a kind of teaching tool that allows children at play to perform simple addition, subtraction, multiplication and division arithmetical operations, learning decimal... 

5927718 
Game apparatus
A game apparatus utilizing a platform which is divided into a first section, having a first partition to define the same, a second section, having a second partition to define the same, and a... 

5868577 
Factor blocks kit and method of use
A factor blocks kit having a plurality of cubic, rectangular and triangular prisms and rectangular mats. These prisms have edges (sides) that measure either 1 unit or a 1digit prime number of... 

5827067 
Method and apparatus for educating mathematical functions
An apparatus comprises a first plurality of first numerical sequences, each numeral within each first numerical sequence being identified by a common indicia and each of the plurality of first... 

5823783 
Rotating pie graph: mathematics learning tool
The present invention is directed to a system for demonstrating mathematic concepts, such as fractions and their equivalents. The system includes at least one device constituted by a pie chart... 

5749734 
Mathematical teaching apparatus
A mathematical teaching apparatus comprising block elements having a front and back side, including indentations and protrusions to allow the blocks elements to stack. The block elements are... 

5720615 
Educational device for aiding in the projection of views of an object
An educational device for aiding in the projection of views of an object. The device includes a first halfhexahedron composed of a bottom panel, a first vertical panel and a second vertical... 

5683252 
Multifunctional game and learning device
The present invention relates to a multifunctional game and learning device. More particularly, the present invention relates to a multifunctional game and learning device which can be used as a... 

5571019 
Apparatus and method for teaching concepts of mathematics
A system for teaching the basic concepts of mathematics utilizing a ball or the like having situated thereon certain mathematical problems and solutions, each such problem having framed thereabout... 

5492325 
Math game device
A game device has a flat, circular bottom wall with a plurality of ballreceiving wells formed in it and a transparent domeshaped cover that captures a plurality of balls within the device. Some... 

5447433 
Learning system with interlocking hexagonal control structures
A learning system is disclosed that comprises ordered pairs of interlocking cooperatively aligned hexagonal bosses and recesses having one or more peripherally disposed lobes as control structures... 

5385473 
Display polyhedra having marked and unmarked paired opposing faces
A polyhedra for emulating an object or other phenomena with marked surfaces, includes a plurality of faces, some with markings and some being blank. The surfaces are arranged about the polyhedra... 

5338203 
Educational aid for mathematics
Mathematics teaching aid for recognition of numerical and functional equivalents and spatial relationships having tiles (12, 14, 16) marked with numerals (12) , functions (14) , and equals (16)... 

5297965 
Mathematical and spatial toy apparatus
A mathematical and spatial toy apparatus is arranged to include a grooved rack board arranged to receive individual block components to teach children the mathematical cumulative effect of such... 

5281144 
Math facts game apparatus
A matrix of discs each having a first end wall spaced from a second end wall, having a cavity therebetween, including a weighted portion to provide for the discs to sink within a body of water,... 

5238408 
Row of joined arithmetic blocks with common walls which are double end wall thickness
Baseten blocks for teaching arithmetic to children, in which each block (19) has a projecting boss (27) with curved (bowedout) sides (29) and an aperture (33) with straight sides (35), so that... 

5238407 
Blocks with mating bosses and recesses which bulge for interference fit
Baseten blocks for teaching arithmetic to children, in which each block (19) has a projecting boss (27) with curved (bowedout) sides (29) and an aperture (33) with straight sides (35), so that... 

5213506 
Binary educational device
A binary computer for demonstrating concepts of decimal to binary conversion and binary operations such as counting, addition, subtraction and multiplication is provided. Further, the binary... 

5176381 
Mathematical game apparatus and method
A method of playing a game where there is a first set of die, each of which has the numerical values of one through six thereon, and a second set of die each of which has plus, minus, division and... 

5176577 
Rectangular blocks for teaching arithmetic have uniform size joinability and transparency
Baseten blocks for teaching arithmetic to children, in which each block (19) has a projecting boss (27) with curved (bowedout) sides (29) and an aperture (33) with straight sides (35), so that... 

5169317 
Educational toy
The educational toy of the present invention comprises a base and transparent tubular members attached to the base arranged in a generally parallel relationship to each other. The output end of... 

5156548 
Die having magic squares
A die or cube having different magic squares on each face. The magic squares are related so that the sums of numbers on each face pair of the three face pairs are equal to the same value. 

5137452 
Baseten blocks employing single, attachable blocks of one color row of ten blocks of different color
Baseten blocks for teaching arithmetic to children, in which each block (19) has a projecting boss (27) with curved (bowedout) sides (29) and an aperture (33) with straight sides (35), so that... 

5120226 
Toy and teaching aid combination
A toy includes a casing having a number of holes formed in an upper surface. A board which has a number of symbols printed on an upper surface is insertable into the bottom of the casing. A number... 

5108291 
Supplementary teaching instruments
A supplementary teaching instrument based on mathematical basic theories and principles as well as child psychology. The invention employs a number of rectangular blocks of a prescribed shape... 

5098301 
Multiplication facts learning aid
A multiplication facts learning aid kit comprises a model amenable to computerization, teachers manual, set flash cards, and student materials to enable the learner to know the multiplication... 

4957443 
Educational card game system
An educational game system consisting of three or more individual decks of cards, and, in some embodiments, an extra set of cards used for special situations to be described hereinafter, and... 

4900255 
For twostage Quincunx
A twostage training device for statistical studies permits the demonstration of advanced statistical principles. Balls are dropped from an upper reservoir through a maze of pins which scatters... 

4838794 
Metric block toy
A metric block toy comprising ten blocks of varying colors, each block being a one tenth of a meter cube, and having indicia designating ten centimeter increments along one edge of each block,... 

4713009 
Teaching apparatus and method for solving algebraic linear equations
A teaching apparatus for Mathematics, specifically algebraic concepts for very young children, enables 3rd and 4th grade level students to solve simple linear algebraic equations. The apparatus... 

4645461 
Method for structurally differentiating polynomial functions
Disclosed are methods for structurally differentiating polynomial functions using parallelogrammic elements. The methods include representing a first ordered pair defined by the polynomial... 

4632661 
Methods for structurally performing differential calculus
Methods for structurally differentiating functional relationships between two ordered sets of numbers related as x and one or more functions of x. The methods employ constructing sets of... 

4560354 
Device for teaching decimal math
A math teaching device comprising an elongate frame utilizing edge guides disposed along each of its long edges, and a plurality of closely similar counting pieces slidably mounted in an upper... 

4521197 
Money calculation game
A game apparatus for challenging the mental dexterity of two or more players and teaching children readily how to recognize, add and remember monetary sums is disclosed, which uses three cubical... 

4504234 
Aiding mathematical learning
An aid for learning roots includes a flat surface with a number of unit squares inscribed inside a larger square surrounded by a border. The board surface contains loops for mating engagement with... 

4466799 
Cuboid block, instructional device for multiplication tables
An instructional toy device for multiplication computation formed by a string of cuboid blocks having an interconnecting elastic string permitting equal segments of multiple blocks to be folded in... 

4452588 
Mathematical game apparatus
An apparatus for generating arithmetic expressions is disclosed. It comprises sets of number dice and of operator dice. The number dice are provided in two different colors, in order to remove... 