CN104282192A - Count demonstrator - Google Patents
Count demonstrator Download PDFInfo
- Publication number
- CN104282192A CN104282192A CN201410552099.6A CN201410552099A CN104282192A CN 104282192 A CN104282192 A CN 104282192A CN 201410552099 A CN201410552099 A CN 201410552099A CN 104282192 A CN104282192 A CN 104282192A
- Authority
- CN
- China
- Prior art keywords
- runner
- symbol
- count
- demonstrator
- rotating wheel
- 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.)
- Pending
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
Abstract
The invention discloses a count demonstrator and relates to the technical field of primary school mathematics teaching aids. The count demonstrator comprises an equal sign and a demonstration panel, wherein a plurality of perspective openings are formed in each of the two sides of the equal sign side by side and formed in the demonstration panel. A plurality of digit rotating wheels and at least one operational character rotating wheel are installed on a center shaft and arranged on the back of the demonstration panel. Each perspective opening corresponds to one digit rotating wheel or the operational character rotating wheel, wherein the operational character rotating wheel corresponds to the perspective opening in the middle of the left side of the equal sign. The center shaft is installed on two supporting plates. Compared with the prior art, when the count demonstrator is used for oral arithmetic exercises, calculation formulas and calculation results can be conveniently and rapidly demonstrated, the learning interest of students is improved, and the students can get addition, subtraction, multiplication and division operation within 20 easily.
Description
Technical field
The present invention relates to math teaching tool for primary school technical field, especially a kind of demonstration device that counts for adding and subtracting multiplying.
Background technology
Primary grades student does a sum orally the plus-minus multiplication within 20, leads to active card and write 0 respectively, 1 when doing one's exercises, 2,3,4,5,6,7,8,9,10 numeral and+,-, × sign of operation, allows student take out two digital cards and a sign of operation card, be arranged in calculating formula, draw result of calculation by mental arithmetic, then the numeral of result of calculation is found out.There is following deficiency in this card teaching aid: the card with numeral and sign of operation is arranged in calculating formula and just can calculate in teaching, card compares dispersion and has the numeral of repetition, use cumbersome and dull, be difficult to the learning interest improving student, individual card is easily lost.
Summary of the invention
Technical matters to be solved by this invention is to provide one and counts demonstration device, the problem using trouble to solve existing Arithmetical operation teaching aid, be difficult to improve the learning interest of student and easily lose.
In order to solve the problem, the technical solution used in the present invention is: this demonstration device that counts, comprise the demonstration panel being provided with "=" symbol and offering multiple perspective mouth be arranged side by side in described "=" symbol both sides respectively, the behind of described demonstration panel is provided with dress multiple digital runner on center shaft and at least one operational symbol runner, mouth is had an X-rayed corresponding with a described digital runner or described operational symbol runner described in each, wherein, described operational symbol runner is corresponding with the described perspective mouth be positioned in the middle of described "=" symbol left side, described central shaft is arranged in two pieces of back up pads.
Above-mentionedly count in demonstration device technical scheme, technical scheme can also be more specifically: the sign of operation that described operational symbol runner indicates for+,-, ×; The numeral that described digital runner indicates is 0,1,2,3,4,5,6,7,8,9,10.
Further, described demonstration panel and two pieces of described back up pads are installed on base plate.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
When 1, doing mental arithmetic exercise with the present invention, allow student stir and be positioned at "=" symbol left-hand digit runner and operational symbol runner, a calculating formula is demonstrated by the perspective mouth demonstrating panel, mental arithmetic is obtained a result, then the digital runner be positioned on the right of "=" symbol is stirred, the result calculated is shown, convenient and swiftly can demonstrate out calculating formula and result of calculation, do it yourself by allowing student to stir digital runner and operational symbol runner, teach through lively activities, improve the learning interest of student, the plus-minus multiplication easily within association 20.
2, demonstration panel and two pieces of back up pads are installed on base plate, connect into an entirety, use and conveniently moving.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
One as shown in Figure 1 and Figure 2 counts demonstration device, comprise the demonstration panel 1 indicating "=" symbol and offer three perspective mouths and two the perspective mouths be arranged side by side in the both sides of "=" symbol respectively, the behind of demonstration panel 1 is provided with the digital runner 3 of four of being contained on central shaft 4 and an operational symbol runner 2, each perspective mouth is corresponding with a digital runner 3 or operational symbol runner 2, wherein, operational symbol runner 2 with one that is positioned in the middle of "=" symbol left side to have an X-rayed mouth corresponding, the sign of operation that operational symbol runner 2 indicates for+,-, ×; The numeral that numeral runner 3 indicates is 0,1,2,3,4,5,6,7,8,9,10; Central shaft 4 is arranged in two pieces of back up pads 5, and demonstration panel 1 and two pieces of back up pads 5 are all fixed on base plate 6.
With the present invention count demonstration device do mental arithmetic exercise time, allow student stir and be positioned at "=" symbol left-hand digit runner 3 and operational symbol runner 2, a calculating formula is demonstrated by the perspective mouth demonstrating panel 1, mental arithmetic is obtained a result, then the digital runner 3 be positioned on the right of "=" symbol is stirred, the result calculated is shown, convenient and swiftly can demonstrate out calculating formula and result of calculation, do it yourself by allowing student to stir digital runner 3 and operational symbol runner 2, improve the learning interest of student, the plus-minus multiplication easily within association 20.
Claims (3)
1. the demonstration device that counts, it is characterized in that: comprise the demonstration panel (1) being provided with "=" symbol and offering multiple perspective mouth be arranged side by side in described "=" symbol both sides respectively, the behind of described demonstration panel (1) is provided with and is contained in multiple digital runner (3) on central shaft (4) and at least one operational symbol runner (2), mouth is had an X-rayed corresponding with a described digital runner (3) or described operational symbol runner (2) described in each, wherein, described operational symbol runner (2) is corresponding with the described perspective mouth be positioned in the middle of described "=" symbol left side, described central shaft (4) is arranged on two pieces of back up pads (5).
2. the demonstration device that counts according to claim 1, is characterized in that: the sign of operation that described operational symbol runner (2) indicates for+,-, ×; The numeral that described digital runner (3) indicates is 0,1,2,3,4,5,6,7,8,9,10.
3. the demonstration device that counts according to claim 1 and 2, is characterized in that: described demonstration panel (1) and two pieces of described back up pads (5) are installed on base plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410552099.6A CN104282192A (en) | 2014-10-17 | 2014-10-17 | Count demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410552099.6A CN104282192A (en) | 2014-10-17 | 2014-10-17 | Count demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104282192A true CN104282192A (en) | 2015-01-14 |
Family
ID=52257033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410552099.6A Pending CN104282192A (en) | 2014-10-17 | 2014-10-17 | Count demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104282192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105243924A (en) * | 2015-10-16 | 2016-01-13 | 于璐菁 | Assistive teaching aid for arithmetic teaching |
| CN107293192A (en) * | 2017-06-02 | 2017-10-24 | 陈晓纪 | The mathematics teaching aid trained for mathematical thinking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090007599U (en) * | 2008-01-23 | 2009-07-28 | (주)천재교육 | Learning tool for mathematics |
| CN202058339U (en) * | 2011-05-24 | 2011-11-30 | 吕超 | Primary school mathematics addition and subtraction demonstration device |
| CN202523250U (en) * | 2012-01-15 | 2012-11-07 | 孔祥刚 | Primary mathematics teaching demonstrating device |
| CN203311683U (en) * | 2013-06-17 | 2013-11-27 | 王琳 | Operational display device for primary school mathematical education |
| CN203520691U (en) * | 2013-10-24 | 2014-04-02 | 宋子建 | Calculator for primary school mathematics teaching |
-
2014
- 2014-10-17 CN CN201410552099.6A patent/CN104282192A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090007599U (en) * | 2008-01-23 | 2009-07-28 | (주)천재교육 | Learning tool for mathematics |
| CN202058339U (en) * | 2011-05-24 | 2011-11-30 | 吕超 | Primary school mathematics addition and subtraction demonstration device |
| CN202523250U (en) * | 2012-01-15 | 2012-11-07 | 孔祥刚 | Primary mathematics teaching demonstrating device |
| CN203311683U (en) * | 2013-06-17 | 2013-11-27 | 王琳 | Operational display device for primary school mathematical education |
| CN203520691U (en) * | 2013-10-24 | 2014-04-02 | 宋子建 | Calculator for primary school mathematics teaching |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105243924A (en) * | 2015-10-16 | 2016-01-13 | 于璐菁 | Assistive teaching aid for arithmetic teaching |
| CN107293192A (en) * | 2017-06-02 | 2017-10-24 | 陈晓纪 | The mathematics teaching aid trained for mathematical thinking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150114 |