CN204288597U - A kind of mental arithmetic magic square - Google Patents
A kind of mental arithmetic magic square Download PDFInfo
- Publication number
- CN204288597U CN204288597U CN201420661443.0U CN201420661443U CN204288597U CN 204288597 U CN204288597 U CN 204288597U CN 201420661443 U CN201420661443 U CN 201420661443U CN 204288597 U CN204288597 U CN 204288597U
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- China
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- magic square
- mental arithmetic
- polyhedron
- numeral
- utility
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Abstract
The utility model discloses a kind of mental arithmetic magic square, described magic square is polyhedron, described polyhedron each is provided with symbol and/or numeral.The utility model is simple, popular, portable, easy to operate, interesting strong, and " mental arithmetic magic square " resides in uninteresting mental arithmetic exercise in " the magic square game " that student likes and go, open the door of their interest, trained mental arithmetic basic training in object for appreciation.
Description
Technical field
The utility model relates to primary school mathematics learning aid field and toy art, is specifically related to the mental arithmetic magic squares such as integer, decimal, mark.
Background technology
Teaching aid, learning aid is utilized to improve Validity of Teaching, domestic research is not also a lot, particularly operation aspect be not also a lot, teachers except use school be equipped with some simple teaching aids except, Self-made Realia is few, and the use of learning aid is also not fully up to expectations.Find in teaching, arrived senior class, have partial students for about 7,8 carry addition and subtraction of giving up the throne, also have problems.If a kind of teaching aid learning aid that student can be made to be interested in can be worked out, then can greatly improve Students ' Learning enjoyment and quality of instruction, improve working and learning efficiency.
Summary of the invention
The utility model, for the problem in background technology, works out a kind of mental arithmetic magic square, by this utility model, improves the mental arithmetic ability of integer, decimal, mark, teach through lively activities in object for appreciation, play middle school, play in.Make up the deficiency of domestic and international teaching aid, learning aid, alleviate that teacher goes out, the burden of arithmetic problem of withdrawing the previous remark.
The utility model technical solution:
A kind of mental arithmetic magic square, is characterized in that: described magic square is polyhedron, described polyhedron each is provided with symbol and/or numeral.
As preferably, described polyhedron is regular polygon.
Described regular polygon is regular octahedron.
Described regular polygon is regular dodecahedron.
Further, described symbol and/or numeral are flexibly connected with polyhedron each.
Described symbol and/or numeral are card, and card back is provided with magnet, and card can be adsorbed on polyhedron each.
Described symbol and/or numeral are attached on polyhedron each by Sticky Note.
As preferably, described polyhedron material is rubber or plastics, has both been not easy bad, is not easy again to injure student.
Described polyhedron summit is arc, and feel is better.
The utility model beneficial effect:
The utility model is simple, popular, portable, easy to operate, interesting strong, and " mental arithmetic magic square " resides in uninteresting mental arithmetic exercise in " the magic square game " that student likes and go, open the door of their interest, trained mental arithmetic basic training in object for appreciation.
Accompanying drawing explanation
Fig. 1 is the utility model regular octahedron structural drawing.
Fig. 2 is the utility model regular dodecahedron structural drawing.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further
Embodiment one:
As shown in Figure 1, a kind of mental arithmetic magic square, described magic square is octahedra, the octahedron that the materials such as papery, plastics, wood, rubber are made writes 1-8,2-9,11-18 respectively, 0.1-0.8,1.1-1.8, denominator is the fraction in lowest term within 10, with these magic squares two or three, four combinations can practise following content:
1, in integer arithmetic:
With two magic square combinations can carry out (1) 2-10 point with close, add within (2) 20, subtraction, (3) multiplication pithy formula, (4) double figures takes advantage of one digit number, and (5) one digit number is divided by one digit number, and (6) double figures is divided by the computing of one digit number
Adding within (1) 100, subtraction can be carried out with three magic square combinations, add within (2) 100, subtract mixing.
2, decimal arithmetic:
(1) integer add, subtract, multiplication and division decimal, (2) decimals add, subtract, a multiplication and division decimal etc.
3, common mark arithmetic, simple mark, decimal hybrid operation.
4, the relation of division, mark, ratio, mutualization of mark, decimal, percentage
5, greatest common factor and the lowest common multiple of two numbers is looked for.
6,24 are calculated soon
……
Embodiment two:
As shown in Figure 2, a kind of mental arithmetic magic square, described magic square is regular dodecahedron, and the octahedron that the materials such as papery, plastics, wood, rubber are made writes 0-11,0.1-1.1 respectively, and denominator is the fraction in lowest term within 10.Print the numeral of some specifications same with magic square face again with the card of Sticky Note or carry magnet, as required, can tear and be stained with, carry out specific exercises.
Service regeulations:
1. two people one group, respectively throws a magic square (also can a people play, a people throws two magic squares) simultaneously;
2. two digital sums of mental arithmetic front appearance, difference, long-pending, business is appointed.If (when only acquiring the multiplication pithy formula of 5, even if run into the situation addition of appearance 6 and 7, by that analogy);
3., after skilled, can add competition atmosphere: first rob the person of answering questions and win once, after a period of time, many persons that wins be winner's (method record of an available picture standardized form of Chinese charcters).
Such as appoint calculation multiplication: occur 3 and 4, just race to be the first to answer a question " thirty or forty two ".
As two people one group fixes time, determines volume or teacher at objects projection upthrow, student such as to race to be the first to answer a question at the mode, has both improved student interests, and has alleviated again teacher's burden.The head of a family also can utilize leisure time and child to carry out above-mentioned exercise, can improve mental arithmetic ability further, away from screen, and again can harmonious parent child relationship.
Claims (7)
1. a mental arithmetic magic square, is characterized in that: described magic square is regular octahedron, described octahedra body each is provided with symbol and/or numeral.
2. magic square as claimed in claim 1, is characterized in that: described magic square also can be regular dodecahedron.
3. magic square as claimed in claim 1 or 2, is characterized in that: described symbol and/or numeral are flexibly connected with each.
4. magic square as claimed in claim 3, is characterized in that: described symbol and/or numeral are card, and card back is provided with magnet, and card can be adsorbed on polyhedron each.
5. magic square as claimed in claim 3, is characterized in that: described symbol and/or numeral are attached on polyhedron each by Sticky Note.
6. magic square as claimed in claim 1 or 2, is characterized in that: described magic square material is rubber or plastics.
7. magic square as claimed in claim 1 or 2, is characterized in that: described magic square summit is arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661443.0U CN204288597U (en) | 2014-11-07 | 2014-11-07 | A kind of mental arithmetic magic square |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661443.0U CN204288597U (en) | 2014-11-07 | 2014-11-07 | A kind of mental arithmetic magic square |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204288597U true CN204288597U (en) | 2015-04-22 |
Family
ID=52871732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420661443.0U Expired - Fee Related CN204288597U (en) | 2014-11-07 | 2014-11-07 | A kind of mental arithmetic magic square |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204288597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111465969A (en) * | 2018-10-02 | 2020-07-28 | 株式会社可力亚魔方 | Arithmetic learning apparatus |
-
2014
- 2014-11-07 CN CN201420661443.0U patent/CN204288597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111465969A (en) * | 2018-10-02 | 2020-07-28 | 株式会社可力亚魔方 | Arithmetic learning apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20211107 |