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US 5,707,238 AGranted
Number and math education system
OwnerDeborah L. Bushinventor
Life of this patent
Estimating the term…
Abstract
A child educational system comprises a support member having a generally flat rectangular support face having a top edge, a row of numbers disposed in a horizontal row along the top edge, a vertical column disposed below each of the numbers, each column having multiple pairs of position indicators therein, a permanent magnet disposed behind each of a plurality of the position indicators, and a plurality of magnetic responsive markers for positioning on the position indicators, whereby the markers are retained by the permanent magnets.
Claims17
An educational system comprising:
- a support member having a generally flat rectangular support face, said face having a top edge, a bottom edge and opposed side edges;
- a row of numbers disposed in a horizontal row along said top edge;
- a vertical column disposed below each of said numbers, each column having multiple pairs of position indicators therein, the number of position indicators being at least equal to the number at the top of the respective column;
- a permanent magnet disposed behind a number of said position indicators equal to the number at the top of the respective column;
- and
- a plurality of magnetic responsive markers for positioning on said position indicators, whereby said markers are retained by said permanent magnets.
3 more elements
An educational kit comprising:
- a generally flat rectangular support member having a generally flat rectangular support face, said face having a top edge, a bottom edge and opposed side edges;
- a row of numbers disposed in a horizontal row along said top edge;
- a vertical column disposed below each of said numbers, each column having multiple position indicators therein at least equal in number to the number at the top of the column;
- a permanent magnet disposed behind a number of said position indicators equal in number to the number at the top of the column;
- and
- a plurality of magnetic responsive markers for positioning on said position indicators, whereby said markers are retained by said permanent magnets.
3 more elements
An educational kit comprising:
- a generally flat rectangular support member having a generally flat rectangular support face, said face having a top edge, a bottom edge and opposed side edges;
- a row of numbers disposed in a horizontal row adjacent said top edge;
- a vertical column disposed below each of said numbers, each column having vertically disposed multiple side-by-side pairs of position indicators therein;
- a permanent magnet mounted behind a number of said position indicators in each column equal in number to the number at the top of each said column;
- and
- a plurality of magnetic responsive markers for positioning on said position indicators, said markers equal in number to the sum of the numbers in said row, said markers positionable on selected ones of position indicators, whereby said markers are retained by said permanent magnets.
3 more elements
Dependencies are inferred from the claim text.