CN211207670U - Two-digit addition teaching device for primary school mathematical teaching - Google Patents
Two-digit addition teaching device for primary school mathematical teaching Download PDFInfo
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- CN211207670U CN211207670U CN201921831621.9U CN201921831621U CN211207670U CN 211207670 U CN211207670 U CN 211207670U CN 201921831621 U CN201921831621 U CN 201921831621U CN 211207670 U CN211207670 U CN 211207670U
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- conveying pipe
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Abstract
The utility model discloses a two-digit addition teaching device for primary school mathematical education, when in use, the device body is moved into a classroom, the installation roller is rotated towards the lower end and is fixed, the switch valves on a first transparent conveying pipe and a second transparent conveying pipe are opened according to the number output as required, the quantity balls with corresponding quantity are dropped out for addition operation, the result obtained by operation is correspondingly dropped by opening the switch valve on a third transparent conveying pipe, and corresponding writing is carried out on a writing board, a math teacher can judge the correctness of the calculation result by adjusting the number of the quantity balls, the whole operation process is simple and convenient, the student can more intuitively and clearly master the digital addition operation, the learning interest of the student on the addition operation is increased, and compared with the traditional abstract teaching mode of books, the teaching effect is better, and the interest of students in learning is higher.
Description
Technical Field
The utility model relates to a teaching aid correlation technique field specifically is a teaching device is operated with two number addition to primary school's mathematical education.
Background
Primary school mathematics teaches children's knowledge about numbers, four arithmetic operations, graphic and length calculation formulas and unit conversion of a series of knowledge through teaching materials, and lays a good mathematical foundation for junior high school and daily life calculation.
In the primary school mathematics teaching, addition is one of the basic four arithmetic operations, which means that two or more numbers and quantities are combined to become the calculation of one number and quantity, the symbol expressing the addition is plus sign "+", and all items are connected by the plus sign when the addition is carried out; the addition operation teaching is particularly important, but the teaching effect of the traditional book abstract teaching mode is poor, the learning interest of students on the addition operation is low, the students can master the digital addition operation more fuzzinly, the memory depth of the students on the addition operation formula is difficult to deepen, the mathematical learning is not firm, and hidden dangers are brought to the subsequent deeper learning.
Therefore, those skilled in the art have provided a teaching device for two-digit addition operation in primary school mathematics teaching to solve the above problems in the background art.
Disclosure of Invention
An object of the utility model is to provide a teaching device is operated with two-digit addition to primary school's mathematical education to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a two-digit addition teaching device for primary school mathematics teaching comprises a base, rollers, a mounting device, a rotating device and a quantity conveying device; the four corners of the lower end of the base are provided with rollers, the upper end of the base is provided with a mounting device, the upper end of the mounting device is provided with a rotating device, and the inner side of the rotating device is provided with a number conveying device; the mounting device comprises a demonstration box, a supporting rod and a writing board; the upside tip of base is equipped with the demonstration case, and the upper end both sides of demonstration case all are equipped with the bracing piece, and just the front end left side of demonstration case, well side and right side all are equipped with the clipboard that a plurality of set up side by side.
As a further aspect of the present invention: the rotating device comprises a rotating seat, a rotating rod and a handle; be equipped with on the left bracing piece of demonstration case upper end and rotate the seat, and be equipped with the dwang on the bracing piece on demonstration case upper end right side, and a side end of dwang all runs through the outside that extends to the dwang, and the upper end of bracing piece is equipped with the through hole that corresponds the setting with the dwang, and the right side of dwang runs through serving and is equipped with the handle, and the outer lane of bracing piece is equipped with a plurality of orderly arranged's constant head tank.
As a further aspect of the present invention: the quantity conveying device comprises an installation roller, a first transparent conveying pipe, a second transparent conveying pipe and a third transparent conveying pipe; the installation roller is arranged between the inner sides of the rotating seat and the rotating rod, a first transparent conveying pipe is arranged on the left side of the lower end of the installation roller, a second transparent conveying pipe is arranged in the middle of the lower end of the installation roller, a third transparent conveying pipe is arranged on the lower side of the right end of the installation roller, and a falling opening is formed between the end portion of the upper side of the first transparent conveying pipe, the end portion of the second transparent conveying pipe and the end portion of the third transparent conveying pipe and the installation roller.
As a further aspect of the present invention: and mounting rods are arranged on two sides of the lower end of the mounting roller, and the lower side end of each mounting rod is provided with an addition operation symbol block and an equality operation symbol block respectively.
As a further aspect of the present invention: a plurality of balls with orderly arranged quantity are placed in the installation roller.
As a further aspect of the present invention: and the handle is provided with a positioning rod which corresponds to the positioning groove.
As a further aspect of the present invention: and the upper ends of the first transparent conveying pipe, the second transparent conveying pipe and the third transparent conveying pipe are respectively provided with a switch valve.
Compared with the prior art, the beneficial effects of the utility model are that: the device is suitable for various operation teaching occasions, when in use, the device body is moved into a classroom, the installation roller is rotated towards the lower end and is fixed, the switch valves on the first transparent conveying pipe and the second transparent conveying pipe are opened according to the number output as required, the quantity balls with corresponding quantity fall out for addition operation, the result obtained by operation correspondingly falls off by opening the switch valve on the transparent conveying pipe of the third transparent conveying pipe and is correspondingly written on a writing board, a teacher can judge the correctness of the calculation result by adjusting the quantity of the quantity balls, the whole operation process is simple and convenient, the students can more intuitively and clearly master the digital addition operation, the learning interest of the students on the addition operation is increased, compared with the traditional abstract book teaching mode, the teaching effect is better, students are more interested in learning.
Drawings
FIG. 1 is a schematic structural diagram of a two-digit addition teaching device for primary school mathematical teaching;
fig. 2 is a schematic structural diagram of a side surface of a handle of a two-digit addition teaching device for primary school mathematical teaching.
In the figure: the demonstration device comprises a roller 1, a base 2, a demonstration box 3, a writing board 4, a support rod 5, a first transparent conveying pipe 6, an addition operation symbol block 7, an installation rod 8, a switch valve 9, a falling port 10, a rotating seat 11, an installation roller 12, a number ball 13, a second transparent conveying pipe 14, an operation symbol block 15, a third transparent conveying pipe 16, a through hole 17, a rotating rod 18, a handle 19, a positioning rod 20 and a positioning groove 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a two-digit addition teaching device for primary school mathematics teaching includes a base, rollers, a mounting device, a rotating device and a number conveying device; four corners of the lower end of the base 2 are respectively provided with a roller 1, the upper end of the base 2 is provided with a mounting device, the upper end of the mounting device is provided with a rotating device, and the inner side of the rotating device is provided with a number conveying device; the mounting device comprises a demonstration box 3, a support rod 5 and a writing board 4; the upside tip of base 2 is equipped with demonstration case 3, and the upper end both sides of demonstration case 3 all are equipped with bracing piece 5, and the front left side of demonstration case 3, well side and right side all are equipped with the clipboard 4 that a plurality of set up side by side.
The rotating device comprises a rotating seat 11, a rotating rod 18 and a handle 19; be equipped with on the left bracing piece 5 in demonstration case 3 upper ends and rotate seat 11, and be equipped with dwang 18 on the bracing piece 5 on demonstration case 3 upper ends right side, and a side end portion of dwang 18 all runs through the outside that extends to dwang 18, and the upper end of bracing piece 5 is equipped with the through hole 17 that corresponds the setting with dwang 18, and the right side of dwang 18 runs through and serves and be equipped with handle 19, and the outer lane of bracing piece 5 is equipped with a plurality of orderly arranged's constant head tank 21.
The quantity conveying device comprises a mounting roller 12, a first transparent conveying pipe 6, a second transparent conveying pipe 14 and a third transparent conveying pipe 16; be equipped with installation cylinder 12 between the inboard of rotating seat 11 and dwang 18, and the lower extreme left side of installation cylinder 12 is equipped with first transparent conveyer pipe 6, and the lower extreme intermediate position of installation cylinder 12 is equipped with the transparent conveyer pipe of second 14, and the right-hand member downside of installation cylinder 12 is equipped with the transparent conveyer pipe of third 16, and all be equipped with between the upside tip of the transparent conveyer pipe of first transparent conveyer pipe 6, the transparent conveyer pipe of second 14 and the transparent conveyer pipe of third 16 and the installation of installation cylinder 12 and fall mouth 10.
The two sides of the lower end of the mounting roller 12 are provided with mounting rods 8, and the lower side end of the mounting rods 8 are respectively provided with an addition operation symbol block 7 and an equality operation symbol block 15.
A plurality of balls 13 with orderly arranged quantity are arranged inside the mounting roller 12.
The handle 19 is provided with a positioning rod 20 corresponding to the positioning groove 21.
And the upper ends of the first transparent conveying pipe 6, the second transparent conveying pipe 14 and the third transparent conveying pipe 16 are respectively provided with a switch valve 9.
The utility model discloses a theory of operation is:
the utility model relates to a two-digit addition teaching device for primary school mathematical teaching, which is suitable for various addition teaching occasions, when in use, the device body is moved into a classroom, an installation roller 12 is rotated downwards and fixed, switch valves 9 on a first transparent conveying pipe 6 and a second transparent conveying pipe 14 are opened according to the number output as required, a corresponding number of quantity balls 13 are dropped for addition operation, the result obtained by operation is correspondingly dropped by opening the switch valve 9 on a third transparent conveying pipe 16, and corresponding writing is carried out on a writing board 4, a math teacher can judge the correctness of the calculation result by adjusting the number of the quantity balls 13, the whole operation process is simple and convenient, the students are more intuitive for mastering the digital addition operation, the learning interest of the students on the addition operation is increased, compared with the traditional abstract teaching mode of books, the teaching method is more definite, the teaching effect is better, and the learning interest of students is higher.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A two-digit addition teaching device for primary school mathematics teaching comprises a base, rollers, a mounting device, a rotating device and a quantity conveying device; the device is characterized in that four corners of the lower end of the base (2) are respectively provided with a roller (1), the upper end of the base (2) is provided with a mounting device, the upper end of the mounting device is provided with a rotating device, and the inner side of the rotating device is provided with a number conveying device; the mounting device comprises a demonstration box (3), a support rod (5) and a writing board (4); the demonstration box (3) is arranged at the end part of the upper side of the base (2), supporting rods (5) are arranged on two sides of the upper end of the demonstration box (3), and a plurality of writing boards (4) arranged in parallel are arranged on the left side, the middle side and the right side of the front end of the demonstration box (3); the rotating device comprises a rotating seat (11), a rotating rod (18) and a handle (19); be equipped with on left bracing piece (5) in demonstration case (3) upper end and rotate seat (11), and be equipped with dwang (18) on bracing piece (5) on demonstration case (3) upper end right side, and a side end portion of dwang (18) all runs through the outside that extends to dwang (18), and the upper end of bracing piece (5) is equipped with through hole (17) that correspond the setting with dwang (18), and the right side of dwang (18) is run through and is served and be equipped with handle (19), and the outer lane of bracing piece (5) is equipped with constant head tank (21) of a plurality of orderly arrangement.
2. The teaching device for the addition of two digits for the mathematics teaching of primary schools according to claim 1, wherein the quantity conveying device comprises a mounting roller (12), a first transparent conveying pipe (6), a second transparent conveying pipe (14) and a third transparent conveying pipe (16); be equipped with between the inboard of rotating seat (11) and dwang (18) installation cylinder (12), and the lower extreme left side of installation cylinder (12) is equipped with first transparent conveyer pipe (6), and the lower extreme intermediate position of installation cylinder (12) is equipped with second transparent conveyer pipe (14), and the right-hand member downside of installation cylinder (12) is equipped with third transparent conveyer pipe (16), and all be equipped with between the upside tip of first transparent conveyer pipe (6), second transparent conveyer pipe (14) and third transparent conveyer pipe (16) and the installation of installation cylinder (12) and fall mouth (10).
3. The two-digit addition teaching device for primary school mathematics according to claim 2, wherein the two sides of the lower end of the mounting roller (12) are provided with mounting rods (8), and the lower end parts of the mounting rods (8) are respectively provided with an addition operator block (7) and an equality operator block (15).
4. The teaching device for the two-digit addition of primary school mathematics according to claim 2, wherein said mounting roller (12) has a plurality of balls (13) arranged in an orderly manner.
5. The teaching device for the two-digit addition operation in primary school mathematics according to claim 1, wherein said handle (19) is provided with a positioning rod (20) corresponding to a positioning groove (21).
6. The teaching device for the two-digit addition operation in primary school mathematics teaching of claim 2, wherein the upper ends of the first transparent delivery pipe (6), the second transparent delivery pipe (14) and the third transparent delivery pipe (16) are all provided with a switch valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921831621.9U CN211207670U (en) | 2019-10-29 | 2019-10-29 | Two-digit addition teaching device for primary school mathematical teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921831621.9U CN211207670U (en) | 2019-10-29 | 2019-10-29 | Two-digit addition teaching device for primary school mathematical teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211207670U true CN211207670U (en) | 2020-08-07 |
Family
ID=71862435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921831621.9U Expired - Fee Related CN211207670U (en) | 2019-10-29 | 2019-10-29 | Two-digit addition teaching device for primary school mathematical teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211207670U (en) |
-
2019
- 2019-10-29 CN CN201921831621.9U patent/CN211207670U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20211029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |