CH388669A - Didactic tool for teaching the first elements of arithmetic - Google Patents
Didactic tool for teaching the first elements of arithmeticInfo
- Publication number
- CH388669A CH388669A CH614662A CH614662A CH388669A CH 388669 A CH388669 A CH 388669A CH 614662 A CH614662 A CH 614662A CH 614662 A CH614662 A CH 614662A CH 388669 A CH388669 A CH 388669A
- Authority
- CH
- Switzerland
- Prior art keywords
- teaching
- arithmetic
- elements
- didactic
- didactic tool
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1265761 | 1961-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH388669A true CH388669A (en) | 1965-02-28 |
Family
ID=11142528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH614662A CH388669A (en) | 1961-06-28 | 1962-05-22 | Didactic tool for teaching the first elements of arithmetic |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH388669A (en) |
GB (1) | GB997441A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3579866A (en) * | 1969-03-03 | 1971-05-25 | John Everett Miller | Polybase counter |
US3672072A (en) * | 1970-12-11 | 1972-06-27 | Raymond Lee Organization Inc | Educational device |
GB2138987A (en) * | 1983-04-30 | 1984-10-31 | Charles Wighton Ferrier | Educational and amusement device |
DE19828744A1 (en) * | 1997-10-23 | 1999-04-29 | Joannis Zigaris | Toy for learning letters and-or words and-or numbers and-or pictures and-or colours |
WO2017081670A2 (en) * | 2015-11-12 | 2017-05-18 | Ellis Felicity Anne | An educational apparatus |
RU2696931C1 (en) * | 2019-02-05 | 2019-08-07 | Александр Васильевич Гущин | Universal arithmetic computing machine |
-
1962
- 1962-05-22 CH CH614662A patent/CH388669A/en unknown
- 1962-05-28 GB GB2038262A patent/GB997441A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB997441A (en) | 1965-07-07 |
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