CN201845461U

CN201845461U - Multifunctional digital counter

Info

Publication number: CN201845461U
Application number: CN2010205386782U
Authority: CN
Inventors: 刘键雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-21
Filing date: 2010-09-21
Publication date: 2011-05-25
Anticipated expiration: 2020-09-21

Abstract

The utility model discloses a multifunctional digital counter, which comprises a baseplate (1) and a movable numerical digit sequence table (2), wherein a numerical digit table (3) is arranged on a part of baseplate (1), and a card (4) is arranged at the other part of baseplate (1) and is provided with Arabic numerals and corresponding Chinese characters, and can turn over relative to the baseplate (1). The digital counter not only has the counting function of a conventional abacus, but also can demonstrate the conversions between addition with carry and abdication subtraction, between units and between a single number and a compound number as well as such teaching activities as variation of decimal size caused by the movement of a scaling position visually; the digital counter further has the compound multiple functions, and students can participate in the learning activities directly and independently inquire the learning, thereby training their ability of using hands and brain; moreover, the multifunctional digital counter has simple structure and multiple functions, and can ensure that the learning activities become simpler and more flexible.

Description

The multifunction digital counter

Technical field

The utility model relates to a kind of teaching aid, is specifically related to be used for the digicounter of primary school teaching.

Background technology

Mathematics is the important effect of play more and more in daily productive life, and Hua Luogeng teaches Ceng Yan: " universe is big, particle little; the speed of rocket, and chemical industry is skilful, the change of the earth; the mystery of biology, daily various aspects such as numerous, the significant contribution of the mathematics that exists everywhere ".Primary school mathematics education can be cultivated student's logical thinking ability, and the exploitation nonintellectual factor has cultural quality education and skill education dual-use function, and counter then is a kind of teaching aid that extensively adopts in the primary school mathematics educational activities.

But, the counter that is used for primary school teaching at present remains traditional bead formula counter, this bead formula counter can only be finished single several functions, can not demonstrate other education activities intuitively, such as finishing conversion between additive operation, subtraction or the unit or the like intuitively, its function singleness, poor practicability, the student can not participate directly in well in the learning activities study is independently probed into, and its logical thinking ability can not get good raising.

The utility model content

At above-mentioned deficiency, the utility model provides a kind of multifunction digital counter, and this counter not only has several functions of traditional bead formula counter, can also ocular demonstration adds, the many education activities such as conversion between subtraction and the unit.

The utility model is to realize by such technical scheme:

A kind of multifunction digital counter, this counter comprise base plate and movable number bit sequence table, and the part of described base plate is provided with the numerical digit table, and another part is provided with card, and this card has arabic numeral and also can stir by relative described base plate with corresponding Chinese character.

Described card stirs before and after the edge of described base plate, also can be set to stir about described relatively base plate.

The latter half of described base plate is provided with the numerical digit table, and the first half is provided with card, and in order to stir card better, described card stirs before and after the top edges of described base plate simultaneously.

Described card stirs before and after the top edges of described base plate by the guiding abutment ring.

For further fixing described number bit sequence table, it is moved in the process that is stowed steadily, the below of described base plate also is provided with draw-in groove on two angles, and described number bit sequence table can pass described draw-in groove and slide.

" myriabit ", " kilobit ", " hundred ", " ten ", " the individual position " of described numerical digit table for writing side by side successively, also can write more units as required successively side by side, such as " ten myriabits ", " megabit ", " ten million ", " hundred million " or the like; Arabic numeral on each card are followed successively by " 0 ", " 9 ", " 8 ", " 7 ", " 6 ", " 5 ", " 4 ", " 3 ", " 2 ", " 1 " and corresponding Chinese character " zero ", " nine ", " eight ", " seven ", " six ", " five ", " four ", " three ", " two ", " one " respectively.

Perhaps, " myriabit ", " kilobit ", " hundred ", " ten ", " the individual position " of described numerical digit table for writing side by side successively, also can write more units as required successively side by side, such as " ten myriabits ", " megabit ", " ten million ", " hundred million " or the like; Arabic numeral on each card are followed successively by " 9 ", " 8 ", " 7 ", " 6 ", " 5 ", " 4 ", " 3 ", " 2 ", " 1 " and corresponding Chinese character " nine ", " eight ", " seven ", " six ", " five ", " four ", " three ", " two ", " one " respectively; The bottom parts of each card correspondence is arabic numeral " 0 " and the corresponding Chinese character of writing " zero ".

Described number bit sequence table is divided into 13 numerical digit lattice, the front has been write " hundred million ", " necessarily ", " 1,000,000 ", " 100,000 ", " myriabit ", " kilobit ", " hundred ", " ten ", " individual position ", " very ", " percentage ", " thousand minutes ", " very much " from right to left successively, wherein, write radix point ". " between " individual position " and " very "; Described number bit sequence table also can be divided into more multidigit lattice, and writes more units as required.

The back side of described number bit sequence table is provided with the numerical digit lattice of 13 blank, thus can on these blank numerical digit lattice, write repeatedly as required as " ton ", " kilogram ", " gram " or " km ", " rice ", " decimetre ", " centimetre ", " millimeter " or " unit ", " angle ", " branch " or " square metre ", unit such as " square decimeter ", " square centimeter " to be to carry out unit conversion.

Owing to adopted said structure, the beneficial effects of the utility model are as follows:

The multifunction digital counter that the utility model provides adopts the numerical digit table, the card and the movable number bit sequence table structure combining that have arabic numeral and corresponding Chinese character and can relative described base plate stir, many education activities in the teaching demonstration activity intuitively, it not only has several functions of traditional bead formula counter, can also ocular demonstration such as the carry addition and the subtraction of giving up the throne, conversion between unit, the conversion of single-character given name number and plural form and demonstrate scaling position intuitively and move the education activities such as variation that cause the decimal size, it is multi-functional that it has above-mentioned compositeness, the student can be participated directly in the learning activities well independently to be probed into study, train the ability that they use one's hands and brains, this digicounter is simple in structure, functional diversities makes the education activities simple and flexible more that becomes.

Description of drawings

Fig. 1 is the structural representation of multifunction digital counter.

Fig. 2 is the structural representation of base plate among the embodiment 1.

Fig. 3 is the structural representation of number bit sequence table.

Fig. 4 is the structural representation at the number bit sequence table shown in Figure 3 back side.

Fig. 5 is the structural representation of card among the embodiment 1.

Fig. 6 is the structural representation of base plate among the embodiment 2.

Fig. 7 is the structural representation of card among the embodiment 2.

Embodiment

In order to be expressly understood the purpose of this utility model, technical scheme and beneficial effect more, below in conjunction with accompanying drawing the utility model is described further, but protection domain of the present utility model is not limited in following examples.

Embodiment 1: as Fig. 1～shown in Figure 5, a kind of multifunction digital counter, this counter comprises base plate 1 and movable number bit sequence table 2, the part of described base plate 1 is provided with numerical digit table 3, another part is provided with card 4, and this card 4 has arabic numeral and also can stir by relative described base plate 1 with corresponding Chinese character; Described card 4 stirs before and after the edge of described base plate 1; The latter half of described base plate 1 is provided with numerical digit table 3, and the first half is provided with card 4, and described card 4 stirs before and after the top edges of described base plate 1; Described card 4 stirs before and after the top edges of described base plate 1 by guiding abutment ring 5; The below of described base plate 1 also is provided with draw-in groove 6 on two angles, and described number bit sequence table 2 can pass described draw-in groove 6 and horizontally slip; " myriabit ", " kilobit ", " hundred ", " ten ", " the individual position " of described numerical digit table 3 for writing side by side successively; Arabic numeral on each card 4 are followed successively by " 0 ", " 9 ", " 8 ", " 7 ", " 6 ", " 5 ", " 4 ", " 3 ", " 2 ", " 1 " and corresponding Chinese character " zero ", " nine ", " eight ", " seven ", " six ", " five ", " four ", " three ", " two ", " one " respectively; Described number bit sequence table 2 is divided into 13 numerical digit lattice, the front has been write " hundred million ", " necessarily ", " 1,000,000 ", " 100,000 ", " myriabit ", " kilobit ", " hundred ", " ten ", " individual position ", " very ", " percentage ", " thousand minutes ", " very much " from right to left successively, wherein, write radix point ". " between " individual position " and " very "; The back side of described number bit sequence table 2 is provided with the numerical digit lattice of 13 blank, has write long measure according to its conversion relation, as " km ", " rice ", " decimetre ", " centimetre " and " millimeter ".

Its principle is as follows:

The understanding of number: demonstration 10 is during with the understanding of interior number, the back that elder generation translates into described base plate 1 to whole cards 4, turn over one by one and show " 1 " successively, " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 ", " 0 " and corresponding Chinese character " ", " two ", " three ", " four ", " five ", " six ", " seven ", " eight ", " nine ", " zero ", march forward 1 at last, at this moment go up the Chinese character " " that shows " 1 " and correspondence for ten, individual position is gone up and is shown " 0 " and corresponding Chinese character " zero ", and at this moment the whole reading of Xian Shiing is exactly " 10 "; During demonstration 11～20 each understanding of counting, stir card 4 on ten to the Chinese character " " that shows " 1 " and correspondence, on individual position, stir card 4 one by one then, show successively " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 ", " 0 " and corresponding Chinese character " ", " two ", " three ", " four ", " five ", " six ", " seven ", " eight ", " nine ", " zero ", march forward 1 at last, at this moment go up the Chinese character " two " that shows " 2 " and correspondence for ten, individual position is gone up and is shown " 0 " and corresponding Chinese character " zero ", and at this moment the whole reading of Xian Shiing is exactly " 20 "; In like manner, the understanding of other numbers by that analogy.

The computing of carry addition: with 15+8 is example, on ten in counter, card 4 is turned over to the Chinese character " " that shows " 1 " and correspondence earlier, individual position is gone up and is shown " 5 " and corresponding Chinese character " five ", on individual position, stir card 4 one by one then, promptly add singly, only be left to write the card 4 of the Chinese character " zero " of " 0 " and correspondence when being added to " 19 " on the position, can not add this moment again, only march forward 1, promptly the card 4 on the position turns over to showing " 0 " and corresponding Chinese character " zero ", go up for ten and show " 2 " and corresponding Chinese character " two ", the card 4 on the individual position is turned over one by one to showing " 3 " and corresponding Chinese character " three ", at this moment the whole reading of Xian Shiing is exactly " 23 " again.

The give up the throne computing of subtraction: with 36-9 is example, on ten in counter, card 4 is turned over to the Chinese character " three " that shows " 3 " and correspondence earlier, individual position upper clamp slice 4 turns over to showing " 6 " and corresponding Chinese character " six ", on individual position, stir card 4 one by one then, promptly subtract singly, there has not been card 4 on the position when reducing to " 30 ", can only move back 1 from ten, promptly a position is gone up and is shown " 2 " and corresponding Chinese character " two ", show " 7 " and corresponding Chinese character " seven " on ten positions, at this moment the whole reading of Xian Shiing is exactly " 27 ".

The read-write of number: stir a card 4 on counter arbitrarily, the arabic numeral that show on it are exactly the content of writing, and corresponding Chinese character and corresponding numerical digit are exactly the content of reading.

Conversion between unit: utilize the conversion between Fig. 1 and Fig. 4 combined demonstration unit, with the example that is scaled between " 100 centimetres " and " 1 " rice, utilize the order of finishing writing long measure shown in Figure 4, show that earlier " 100 centimetres " change into " 1 meter ", with hand shelter from " centimetre " in addition other long measures, what show on this hour counter is exactly " 100 centimetres ", to be scaled 1 meter to it, at this time shelter from " rice " other long measures in addition with regard to handle, what show on this hour counter is exactly " 1 meter ".

The conversion of single-character given name number and plural form: with " 1.32 meters change into 1 meter 3 decimeters 2 centimetres " is example, at first shelter from " rice " other long measures in addition with hand, what show on this hour counter is exactly " 1.32 meters ", then hand is decontroled, show " rice, decimeter, centimetre " these several units on the multi-functional numerical digit table, at this time " 1.32 meters " have just become " 1 meter 3 decimeters 2 centimetres ".

The character of decimal: utilize the character of Fig. 1 and Fig. 3 combined demonstration decimal, for example: " 0.1200 ", the size of " 0.1200 " does not change when sheltering from backmost one " 0 " or two " 0 " with hand.

Scaling position moves the variation that causes the decimal size: at first show " 1.2 " at counter, at this time can spur described number bit sequence table 2, at this time the scaling position on the numerical digit table 3 is also moving, we will find that radix point will become " little " to " left side " number, every to " left side " mobile, number just dwindles 10 times; Radix point will become " greatly " to " right side " number, and every to " right side " mobile, number just enlarges 10 times.

Embodiment 2: shown in Fig. 1,3,4,6 and 7, with present embodiment with embodiment 1 different be that the arabic numeral on each card 4 are followed successively by " 9 ", " 8 ", " 7 ", " 6 ", " 5 ", " 4 ", " 3 ", " 2 ", " 1 " and corresponding Chinese character " nine ", " eight ", " seven ", " six ", " five ", " four ", " three ", " two ", " one " respectively; Base plate 1 part of each card 4 correspondence is arabic numeral " 0 " and the corresponding Chinese character of writing " zero ", promptly " 0 " and " zero " is not to write on card 4, but write on described base plate 1, when carrying out every computing, need march forward 1 or draw back 1 the time, " 0 " among the resultant result and corresponding " zero " are presented on the base plate 1.

Claims

1. multifunction digital counter, it is characterized in that: this counter comprises base plate (1) and movable number bit sequence table (2), the part of described base plate (1) is provided with numerical digit table (3), another part is provided with card (4), and this card (4) has arabic numeral and also can stir by relative described base plate (1) with corresponding Chinese character.

2. multifunction digital counter according to claim 1 is characterized in that: described card (4) stirs before and after the edge of described base plate (1).

3. multifunction digital counter according to claim 2, it is characterized in that: the latter half of described base plate (1) is provided with numerical digit table (3), the first half is provided with card (4), and described card (4) stirs before and after the top edges of described base plate (1).

4. multifunction digital counter according to claim 3 is characterized in that: described card (4) stirs before and after the top edges of described base plate (1) by guiding abutment ring (5).

5. multifunction digital counter according to claim 4 is characterized in that: the below of described base plate (1) also is provided with draw-in groove (6) on two angles, and described number bit sequence table (2) can pass described draw-in groove (6) and slide.

6. according to each described multifunction digital counter in the claim 1～5, it is characterized in that: the back side of described number bit sequence table (2) is provided with the numerical digit lattice of 13 blank.