CN201725235U - Abacus for children - Google Patents
Abacus for children Download PDFInfo
- Publication number
- CN201725235U CN201725235U CN2010201883606U CN201020188360U CN201725235U CN 201725235 U CN201725235 U CN 201725235U CN 2010201883606 U CN2010201883606 U CN 2010201883606U CN 201020188360 U CN201020188360 U CN 201020188360U CN 201725235 U CN201725235 U CN 201725235U
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- sliding bar
- abacus
- children
- numerical digit
- sliding
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Abstract
The utility model relates to the technical field of computing tools, in particular to an abacus for children. The abacus comprises a square frame, a beam, sliding bars and mobile beads, wherein, the beam is provided with at least three sliding bars; each sliding bar is divided into an upper section and a lower section by the beam; each section consists of ten mobile beads; each bead represents the number '1'. By using the abacus, children can understand different computations such as 10 ones make 1 ten, 10 tens make 1 hundred and the like, and learn and master arithmetic calculation. Besides, two adjacent sliding bars form a digital section representing a particular digit, wherein, one adjacent sliding bar is in the primary position and the other in the secondary position. In the utility model, the sliding bar at the secondary position is arranged additionally for the sliding bar at the primary position to conduct auxiliary operations such as binary counting, borrow digit counting and the like, thereby helping children understand algorithm easily, master basic operation of multi-bit numbers, calculate fast and correctly, and improve study efficiency.
Description
Technical field:
The utility model relates to the computational tool technical field, refers in particular to child abacus.
Background technology:
At present the abacus that generally uses is made of frame, beam, shelves and bead, and the bead on every grade is divided into upper and lower two parts by beam, above every pearl represent five, below every pearl represent one.Because every pearl represents five above it, this is very abstract concerning children, is difficult to allow the child understand, and particularly the plus and minus calculation of " mending five fifth day of the first lunar month " allows children be difficult to grasp especially.And children are in first immunologing mathematics, for the cognition of number abacus commonly used, but abacus can only cognitive number and is carried out simple algorithm calculations, when the vertical calculating of teaching, the teacher can only write numeral on blackboard, is alignd with a position in a position, ten are alignd with ten, add and subtract then, do not have notion intuitively, the vertical dyscalculia of study for children.
The utility model content:
The purpose of this utility model is exactly to provide a kind of at the deficiency of prior art existence can set up the vertical child abacus that carries out fundamental operation, helps children cognition number and grasp algorithm calculations.
To achieve these goals, the technical solution adopted in the utility model is: child abacus, it comprises square bearer, be located at the crossbeam in the square bearer, be located in the sliding bar on the crossbeam, the movable pearl of slip cap on sliding bar, at least wear three parallel sliding bars on the crossbeam, be separated into each string up and down by crossbeam on every sliding bar two sections of 10 movable pearls are arranged, every adjacent two sliding bars constitute the numerical digit district of a numerical digit of expression, a wherein sliding bar in each numerical digit district is the status of a sovereign that is used to calculate numeration and result, and another root sliding bar is the auxilliary position that is used for borrow or carry counting system.
The quantity of described sliding bar is odd number.
Movable pearl color in adjacent two described numerical digit districts on the sliding bar is inequality.
Movable pearl color on same described sliding bar is one or more.
Be provided with spacing between described adjacent two described numerical digit districts, this spacing is greater than the distance between two sliding bars in the same numerical digit district.
The utility model beneficial effect is: the child abacus that the utility model provides, it comprises square bearer, crossbeam, sliding bar, movable pearl, at least wear three parallel sliding bars on the crossbeam, each string of the two sections that are separated into by crossbeam on every sliding bar has 10 movable pearls, each movable pearl represents 1, can allow children know from experience full 10 one advances 1 ten, full 10 ten and advances calculating such as 1 hundred, help the children cognition number and grasp algorithm calculations, and two-part up and down movable pearl can be distinguished operation independent, be equivalent to two abacuses, can carry out vertical calculating; In addition, every adjacent two sliding bars constitute the numerical digit district of a numerical digit of expression, a wherein sliding bar in each numerical digit district is the status of a sovereign that is used to calculate numeration and result, another root sliding bar is the auxilliary position that is used for borrow or carry counting system, the utility model is set up auxilliary position sliding bar for status of a sovereign sliding bar, to carry out auxiliary operations such as borrow or carry counting system, allow children understand easily and calculate reason, convenient for children is grasped the fundamental operation of long number, study easily, computing is fast, is difficult for makeing mistakes, and improves children's learning efficiency.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, see shown in Figure 1, the utility model can be with wooden, bamboo, plastics, material such as metal or stone material is made, it comprises square bearer 1, be located at the crossbeam 2 in the square bearer 1, be located in the sliding bar 3 on the crossbeam 2, the movable pearl 4 of slip cap on sliding bar 3, at least wear the sliding bar 3 of three vertical parallel arrangements on the crossbeam 2, the two sections that are separated into by crossbeam 2 on every sliding bar 3, every section each string has 10 movable pearls 4, every adjacent two sliding bars 3 constitute the numerical digit district 5 of a numerical digit of expression, a wherein sliding bar 3 in each numerical digit district 5 is the status of a sovereign that is used to calculate numeration and result, and another root sliding bar 3 is for being used for the auxilliary position of borrow or carry counting system.
The quantity of sliding bar 3 can be even numbers, rightmost two sliding bars, 3 an expressions position, and the quantity of sliding bar 3 also can be odd number certainly, and leftmost those root sliding bar 3 expression most significant digits.Each numerical digit district 5 is expressed as a position, ten, hundred, kilobit from right to left successively ... each movable pearl 4 represents 1, adopt the decimal system, can allow children know from experience full 10 one advances 1 ten, full 10 ten and advances 1 hundred ... Deng calculating, help the children cognition number and grasp algorithm calculations, and two-part up and down movable pearl 4 can be distinguished operation independent, be equivalent to two abacuses, can carry out vertical calculating.
The utility model is set up auxilliary position sliding bar for status of a sovereign sliding bar, to carry out auxiliary operations such as borrow or carry counting system, allows children understand easily and calculates reason, and convenient for children is grasped the fundamental operation of long number, study easily, and computing is fast, is difficult for makeing mistakes.Be applicable to 0～10 years old children's number, add, subtract, the multiplication and division computing, and vertical plus-minus fundamental operation.
In the time of actual the use, can use by following method:
(1), the algorithm of addition:
Be used for addend and summand addition, select one group of sliding bar as a position earlier, right-to-left, ten, hundred ... pearl on the epimere of status of a sovereign crossbeam is used for counting addend, pearl on the hypomere is used for counting summand, the meter as a result of every addition is on the pearl of this hypomere, and ten pearls of note are gone up in auxilliary position, the number of the pearl note less than ten on the status of a sovereign.
10 with interior several additions, and during less than 10, the meter as a result of addition is on the pearl of this status of a sovereign hypomere as a result for it, and its result surpasses at 10 o'clock, and the meter as a result of addition is on the pearl of this hypomere, and ten pearls of note are gone up in auxilliary position, the number of the pearl note less than ten on the status of a sovereign.Then, remove 10 pearls on the auxilliary position of individual position, 10 add 1 pearl at status of a sovereign place on the sliding bar at phase ortho position, represent the carry notion very intuitively.
Long number addition and carry are undertaken by above-mentioned, just will note calculating from individual position, and computing is to high-order step by step.
(2), the algorithm of subtraction:
Carry out subtraction, select one group of sliding bar earlier, right-to-left, ten, hundred as a position ..., the pearl on the epimere of status of a sovereign crossbeam is used for counting subtrahend, and the pearl on the hypomere is used for counting minuend, and every meter as a result that subtracts each other is on the pearl of this hypomere.Directly on the minuend post, cut subtrahend during calculating,, need to borrow 1, on this auxilliary position, become 10, subtract each other again from last one if inadequately when subtracting.
Long number is subtracted each other and borrow is undertaken by above-mentioned, just will note calculating from individual position, and computing is to high-order step by step.
(3), the algorithm of multiplication:
Multiplying is the easy computing of addition: select the number of sliding bar by multiplicand, at the pearl number of counting multiplier on each sliding bar, sum is exactly long-pending, and meter is on other sliding bar as a result.
(4), the algorithm of division:
Division is the inverse operation of multiplication: earlier the dividend meter on suitable sliding bar, choose the number of sliding bar by divisor, dividend is assigned on each sliding bar, after having divided, the number on every post is discussed exactly; If dividing not Wan what be left is exactly remainder.
Above way, highly beneficial to thinking and the conceptual understanding of deepening children and primary grades student logarithm, amount, can allow their the middle learning mathematics that is at play, memory reinforcing.
Can design the general abacus of 2 systems, 8 systems, 16 systems with same principle.
Certainly, the above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1. child abacus, it comprises square bearer, be located at crossbeam in the square bearer, be located in sliding bar, the movable pearl of slip cap on sliding bar on the crossbeam, it is characterized in that: wear three parallel sliding bars on the described crossbeam at least, be separated into each string up and down by crossbeam on every sliding bar two sections of 10 movable pearls are arranged, every adjacent two sliding bars constitute the numerical digit district of a numerical digit of expression, a wherein sliding bar in each numerical digit district is the status of a sovereign that is used to calculate numeration and result, and another root sliding bar is the auxilliary position that is used for borrow or carry counting system.
2. child abacus according to claim 1 is characterized in that: the quantity of described sliding bar is odd number.
3. child abacus according to claim 1 is characterized in that: the movable pearl color in adjacent two described numerical digit districts on the sliding bar is inequality.
4. child abacus according to claim 1 is characterized in that: the movable pearl color on same described sliding bar is one or more.
5. according to any described child abacus of claim 1-4, it is characterized in that: be provided with spacing between described adjacent two described numerical digit districts, this spacing is greater than the distance between two sliding bars in the same numerical digit district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201883606U CN201725235U (en) | 2010-05-04 | 2010-05-04 | Abacus for children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201883606U CN201725235U (en) | 2010-05-04 | 2010-05-04 | Abacus for children |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725235U true CN201725235U (en) | 2011-01-26 |
Family
ID=43493579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201883606U Expired - Fee Related CN201725235U (en) | 2010-05-04 | 2010-05-04 | Abacus for children |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725235U (en) |
-
2010
- 2010-05-04 CN CN2010201883606U patent/CN201725235U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130504 |