GB319981A - Number circle device for teaching arithmetic - Google Patents
Number circle device for teaching arithmeticInfo
- Publication number
- GB319981A GB319981A GB3315228A GB3315228A GB319981A GB 319981 A GB319981 A GB 319981A GB 3315228 A GB3315228 A GB 3315228A GB 3315228 A GB3315228 A GB 3315228A GB 319981 A GB319981 A GB 319981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circle device
- number circle
- teaching arithmetic
- teaching
- arithmetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/02—Counting; Calculating
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3315228A GB319981A (en) | 1928-11-13 | 1928-11-13 | Number circle device for teaching arithmetic |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3315228A GB319981A (en) | 1928-11-13 | 1928-11-13 | Number circle device for teaching arithmetic |
Publications (1)
Publication Number | Publication Date |
---|---|
GB319981A true GB319981A (en) | 1929-10-03 |
Family
ID=10349217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3315228A Expired GB319981A (en) | 1928-11-13 | 1928-11-13 | Number circle device for teaching arithmetic |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB319981A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2930141A (en) * | 1958-05-27 | 1960-03-29 | Albert A Southard | Georef computer |
GB2391999A (en) * | 2002-08-13 | 2004-02-18 | Sumanasiri Wijesingh Ekanayake | Educational number device for addition and subtraction |
-
1928
- 1928-11-13 GB GB3315228A patent/GB319981A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2930141A (en) * | 1958-05-27 | 1960-03-29 | Albert A Southard | Georef computer |
GB2391999A (en) * | 2002-08-13 | 2004-02-18 | Sumanasiri Wijesingh Ekanayake | Educational number device for addition and subtraction |
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