US4571189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for teaching coin relationships
Assignee: Individual
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Filing: 1985-04-26
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Granted: 1986-02-18
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Expires: 2005-04-26
Abstract
Abstract A manipulative system is disclosed which is adapted to teach basic relationships between coins and bills of different denominations and basic change-making skills to students with limited learning capacity. A board overlayed with the images of one hundred coins of the smallest denomination disposed in a five by twenty array is used in conjunction with first and second series of overlays, each having several subsets. The overlays have various quantities of images of the smallest denomination coin imprinted thereon. Some overlays in a first series have a tab carrying the image of a coin equivalent in value to the summation of the coins of the lowest denomination imprinted on a given overlay. The two overlay series have distinctly different background colors to facilitate an understanding of the changemaking process. Under the supervision of an instructor, and sometimes with his participation, a student manually emplaces combinations of overlays on the board to establish the relationships between different coin combinations and the relationships between coins and bills of different denominations and to perfect change-making skills under varying conditions.
Inventors
- 👤 Spencer L. Shank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:42
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02; G09B19/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
246 words
A system for teaching the relationships between coins of different values in a monetary system and basic change making skills comprising: (A) a board imprinted with one hundred images of the smallest denomination coin of the monetary system disposed in an array of columns containing five coin images and rows containing twenty coin images; (B) a first series of overlays adapted for manual emplacement and removal on said board; (i) each overlay of a first subset of said first series including at least one column of five images of the smallest denomination coin imprinted thereon and a tab on which is imprinted the image of a single coin which represents the cumulative value of the total number of smallest denomination coin imprinted on said overlay; (ii) each overlay of a second subset of said first series of overlays having a single image of the smallest denomination coin imprinted thereon; (C) a second series of overlays adapted for manual emplacement and removal on said board, said second series of overlays having a background color disctinctively different from the background color of said first series of overlays; (i) each overlay of a first subset of said second series of overlays including at least one column of five images of the smallest denomination coin imprinted thereon; and (ii) each overlay of a second subset of said second series of overlays including one column of at least one and less than five images of the smallest denomination coin imprinted thereon.
Claim 2
Independent Claim
246 words
A system for teaching the relationships between coins of different values in a monetary system and basic change making skills comprising: (A) a board imprinted with one hundred images of the smallest denomination coin of the monetary system disposed in an array of columns containing five coin images and rows containing twenty coin images; (B) a first series of overlays adapted for manual emplacement and removal on said board; (i) each overlay of a first subset of said first series including at least one column of five images of the smallest denomination coin imprinted thereon and a tab on which is imprinted the image of a single coin which represents the cumulative value of the total number of smallest denomination coin imprinted on said overlay; (ii) each overlay of a second subset of said first series of overlays having a single image of the smallest denomination coin imprinted thereon; (C) a second series of overlays adapted for manual emplacement and removal on said board, said second series of overlays having a background color disctinctively different from the background color of said first series of overlays; (i) each overlay of a first subset of said second series of overlays including at least one column of five images of the smallest denomination coin imprinted thereon; and (ii) each overlay of a second subset of said second series of overlays including one column of at least one and less than five images of the smallest denomination coin imprinted thereon.
Claim 3
Dependent Claim
64 words
The system of claim 1 which further includes a third subset of said second series of overlays, each overlay of said third subset of said second series of overlays including at least one column of five images of the smallest denomination coin imprinted thereon and one additional column of at least one and less than five images of the smallest denomination coin imprinted thereon.
Claim 4
Dependent Claim
86 words
The system of claim 1 which further includes a third subset of said first series of overlays, each overlay of said third subset of said first series of overlays including: (A) one hundred images of the smallest denomination coin of the monetary system disposed in an array of columns containing five coin images and rows containing twenty coin images; and (B) a tab on which is imprinted the image of a bill which represents the cumulative value of the one hundred coins of the smallest denomination.
Claim 5
Dependent Claim
86 words
The system of claim 2 which further includes a third subset of said first series of overlays, each overlay of said third subset of said first series of overlays including: (A) one hundred images of the smallest denomination coin of the monetary system disposed in an array of columns containing five coin images and rows containing twenty coin images; and (B) a tab on which is imprinted the image of a bill which represents the cumulative value of the one hundred coins of the smallest denomination.
Claim 6
Dependent Claim
56 words
The system of claim 4 which further includes a fourth subset of said second series of overlays, each overlay of said fourth subset of said second series of overlays including one hundred images of the smallest denomination coin of the monetary system disposed in an array of columns containing five coins and rows containing twenty coins.
Claim 7
Dependent Claim
46 words
The system of claim 5 in which each overlay of said fourth subset of said second series of overlays further includes a tab on which is imprinted the image of a bill which represents the cumulative value of the one hundred coins of the smallest denomination.
Claim 8
Dependent Claim
29 words
The system of claim 1 in which said board and said overlays have surfaces adapted for easy erasure of marks entered thereon by a grease pencil or the like.
Claim 9
Dependent Claim
29 words
The system of claim 2 in which said board and said overlays have surfaces adapted for easy erasure of marks entered thereon by a grease pencil or the like.
Claim 10
Dependent Claim
29 words
The system of claim 3 in which said board and said overlays have surfaces adapted for easy erasure of marks entered thereon by a grease pencil or the like.
Claim 11
Dependent Claim
29 words
The system of claim 4 in which said board and said overlays have surfaces adapted for easy erasure of marks entered thereon by a grease pencil or the like.
Claim 12
Dependent Claim
29 words
The system of claim 5 in which said board and said overlays have surfaces adapted for easy erasure of marks entered thereon by a grease pencil or the like.
Claim 13
Dependent Claim
30 words
The system of claim 6 in which said board and said overlays have a surface adapted for easy erasure of marks entered thereon by a grease pencil or the like.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |