CN2929799Y - Abacus for child education - Google Patents
Abacus for child education Download PDFInfo
- Publication number
- CN2929799Y CN2929799Y CN 200620101758 CN200620101758U CN2929799Y CN 2929799 Y CN2929799 Y CN 2929799Y CN 200620101758 CN200620101758 CN 200620101758 CN 200620101758 U CN200620101758 U CN 200620101758U CN 2929799 Y CN2929799 Y CN 2929799Y
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- CN
- China
- Prior art keywords
- abacus
- beads
- color
- lever
- bead
- 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.)
- Expired - Fee Related
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Abstract
A child teaching abacus comprises a frame and several bars parallel arrayed in the frame. An equal number of beads are stringed on each bar, also the number is 9, and upper 4 continuous beads are in one color, and the other 5 continuous beads are another color, forming a duotone simple abacus structure without center sill. The utility model omits the center sill, and simplifies the abacus structure, wherein 9 beads are on each bar coming up to denary direct-viewing images, and children easily understand when dong abacus calculation, more particularly direct-viewing without a pithy formula when doing plus-minus calculation, greatly increasing the teaching effect. Using the duotone beads are in favor of counting, and can reduce calculation errors, also increases aesthetic and interest of abacus.
Description
Technical field: the utility model relates to a kind of abacus.
Background technology: the general traditional bead number of abacus on every lever is six or seven, and wherein the bead below central sill is five, and above the central sill is one or two.This abacus is for the students of the junior years that temporarily do not need to carry out complicated arithmetic, perhaps tentatively understand the quantity notion, the children that just contacted rechoning by the abacus seem too complicated, and the computing pithy formula is many, the rechoning by the abacus algorithm is difficult for grasping, and the effect of children's abacus teaching is influenced.
Summary of the invention: at the deficiencies in the prior art, it is a kind of simple and reasonable that the utility model provides, the child teaching abacus that algorithm is simplified.
The utility model comprises framework and wherein many levers of being arranged in parallel, go here and there on every lever the bead of equal number is arranged, bead on every lever is nine, and top continuous four beads are a kind of color, remaining continuous five beads are another color, constitute the double-colored simple and easy abacus structure of beam type in the nothing.
The utility model has omitted central sill, has simplified the abacus structure, and the bead on every lever is nine, meet metric visual pattern, understand easily when children carry out rechoning by the abacus, very directly perceived when particularly carrying out simple plus and minus calculation, need not pithy formula, improved teaching efficiency greatly.And adopt double-colored bead to help counting, reduce miscount, and increase the entertaining degree attractive in appearance of abacus.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings: accompanying drawing is the main structure synoptic diagram of embodiment.
Embodiment: as shown in the figure, parallel is shown many levers 2 in framework 1, go here and there on every lever 2 bead 3 of equal number is arranged, bead 3 on every lever 2 is nine, and top continuous four beads 3 are a kind of color, remaining continuous five beads 3 are another color, constitute the double-colored simple and easy abacus structure of beam type in the nothing.During production, bead 3 can adopt the plastics manufacturing of different colours, and it is more convenient to adjust color.Following five beads 5 of each lever 2 adopt a kind of color, meet the custom layout of traditional abacus, convenient counting, and the structure of one grade of nine-bead is special intuitive and convenient when simple plus and minus calculation, and children grasp easily.Lever 2 generally can adopt 13, also meets the common layout of abacus.
Claims (2)
1, a kind of child teaching abacus, comprise framework and wherein many levers of being arranged in parallel, go here and there on every lever the bead of equal number is arranged, it is characterized by: the bead (3) on every lever (2) is nine, and top continuous four beads (3) are a kind of color, remaining continuous five beads (3) are another color, constitute the double-colored simple and easy abacus structure of beam type in the nothing.
2, child teaching abacus according to claim 1 is characterized by: lever (2) has 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101758 CN2929799Y (en) | 2006-03-14 | 2006-03-14 | Abacus for child education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101758 CN2929799Y (en) | 2006-03-14 | 2006-03-14 | Abacus for child education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929799Y true CN2929799Y (en) | 2007-08-01 |
Family
ID=38308176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101758 Expired - Fee Related CN2929799Y (en) | 2006-03-14 | 2006-03-14 | Abacus for child education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929799Y (en) |
-
2006
- 2006-03-14 CN CN 200620101758 patent/CN2929799Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |