CN214541244U - Random variable test box for teaching - Google Patents
Random variable test box for teaching Download PDFInfo
- Publication number
- CN214541244U CN214541244U CN202120954545.1U CN202120954545U CN214541244U CN 214541244 U CN214541244 U CN 214541244U CN 202120954545 U CN202120954545 U CN 202120954545U CN 214541244 U CN214541244 U CN 214541244U
- Authority
- CN
- China
- Prior art keywords
- test
- random variable
- box body
- box
- teaching
- 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
Links
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 239000005341 toughened glass Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a random variable test box for teaching, which comprises a box body, an observation part and a collecting and counting part; the box is hollow structure, and its advantage lies in: the test device is provided with the test article inlet part, the collection counting part and the separation part, and can be used by matching the test article inlet part, the collection counting part and the separation part, so that multiple random variable tests can be carried out at one time, the counting process of test data is simpler, the defects that the traditional random variable test needs to be carried out for one time and the data counting is carried out for one time are effectively overcome, the time required by the test is greatly reduced, great convenience is brought to the test process of teachers and students, and the teaching efficiency of the teachers and the learning efficiency of the students are improved; possess the observation portion, through the existence of observation portion, make things convenient for the student to realize the observation to the experimentation through the observation portion, deepen student's experimental impression, and then deepen student's learning effect, the function is more comprehensive, the popularization and the use of the product of being convenient for.
Description
Technical Field
The utility model relates to a teaching equipment technical field, concretely relates to random variable proof box is used in teaching.
Background
The random variable represents a real-value single-value function of various results of a random test, and in a simple way, the random variable refers to the number expression of random events, the random variable is one of the more important knowledge points of high school mathematics, however, the random variable often needs to deepen the impression of students through some tests in the teaching process, such as a coin-throwing test, however, the test needs to be performed once and again, and data statistics needs to be performed once and again, which greatly increases the time needed by the test and causes great inconvenience to the test process of teachers and students, and therefore, a random variable test box for teaching is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a teaching is with random variable proof box just for solving above-mentioned problem, have that the test process is fast, make things convenient for advantages such as statistics of data, be convenient for observe, see the explanation below for details.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a teaching random variable test box, which comprises a box body, an observation part and a collecting and counting part;
the box body is of a hollow structure, the upper end of the box body is provided with a test article inlet part, and the middle part of the box body is provided with a separation part;
the observation part is positioned at the front end of the box body;
the number of the collecting and counting parts is two and the collecting and counting parts are respectively positioned at the left end and the right end of the box body.
Preferably, the inlet portion of the test article includes the inlet pipe, the inlet pipe is equipped with the shielding post, the upper end fixedly connected with hopper of inlet pipe realizes laying the foundation to placing of test article, for experimental concentration.
Preferably, the inlet pipe is provided with a jack corresponding to the shielding column, and the inlet pipe penetrates through the jack, so that the control of the test process by a tester is facilitated.
Preferably, the separation part is the baffle, the baffle is located the inlet pipe under, the thickness of baffle reduces from last to down in proper order, reduces the thickness of separation part upper end, reduces the influence that the separation part probably caused the test result.
Preferably, the observation part adopts toughened glass, the front end of box is equipped with the mounting groove corresponding with toughened glass, toughened glass and mounting groove cooperation installation, the person of facilitating the use is to the observation of experimentation.
Preferably, the collection counting part comprises a drawer, the front end of the drawer is provided with a convenient-to-pull groove, concentrated collection of the test articles is achieved, subsequent counting of test results is facilitated, and the convenient-to-pull groove facilitates taking out of the drawer.
Preferably, a drawer groove corresponding to the drawer is formed in the box body, the drawer and the drawer groove are installed in a matched mode, installation of the collecting and counting portion is guaranteed, and normal use of the random variable test box is guaranteed.
The beneficial effects of the utility model reside in that:
the test device is provided with the test article inlet part, the collection counting part and the separation part, and can be used by matching the test article inlet part, the collection counting part and the separation part, so that multiple random variable tests can be carried out at one time, the counting process of test data is simpler, the defects that the traditional random variable test needs to be carried out for one time and the data counting is carried out for one time are effectively overcome, the time required by the test is greatly reduced, great convenience is brought to the test process of teachers and students, and the teaching efficiency of the teachers and the learning efficiency of the students are improved;
possess the observation portion, through the existence of observation portion, make things convenient for the student to realize the observation to the experimentation through the observation portion, deepen student's experimental impression, and then deepen student's learning effect, the function is more comprehensive, the popularization and the use of the product of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the present invention;
fig. 2 is a schematic perspective view of fig. 1 according to the present invention;
fig. 3 is a schematic structural view of the perspective front section of fig. 1 according to the present invention;
fig. 4 is an enlarged sectional view of fig. 3 a according to the present invention.
The reference numerals are explained below:
1. a box body; 2. a test article inlet part; 2a, a feeding pipe; 2b, a hopper; 2c, shielding columns; 3. an observation section; 4. a collection statistic unit; 4a, a drawer; 4b, pulling the groove; 5. a separation section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a random variable test box for teaching, which comprises a box body 1, an observation part 3 and a collection and statistics part 4;
the box body 1 is of a hollow structure, the upper end of the box body 1 is provided with a test article inlet part 2, the test article inlet part 2 comprises a feeding pipe 2a, the feeding pipe 2a is provided with a jack corresponding to a shielding column 2c, the feeding pipe 2a penetrates through the jack, control over a test process is facilitated for a tester, the feeding pipe 2a is provided with the shielding column 2c, the upper end of the feeding pipe 2a is fixedly connected with a hopper 2b, placement of test articles is achieved, a foundation is laid for centralized test, the middle part of the box body 1 is provided with a separating part 5, the separating part 5 is a partition plate, the partition plate is located under the feeding pipe 2a, the uniform distribution of the separating part 5 on the test articles is guaranteed, the thickness of the partition plate is sequentially reduced from top to bottom, the thickness of the upper end of the separating part 5 is reduced, and influence of the separating part 5 on a test result is reduced;
the observation part 3 is positioned at the front end of the box body 1, the observation part 3 is made of toughened glass, the front end of the box body 1 is provided with a mounting groove corresponding to the toughened glass, and the toughened glass and the mounting groove are mounted in a matched mode, so that a user can conveniently observe the test process;
collect statistics portion 4's quantity and be two and be located box 1 respectively about both ends, it includes drawer 4a to collect statistics portion 4, 1 inside drawer groove that is equipped with and drawer 4a corresponding of box, drawer 4a and drawer groove cooperation installation, guarantee to collect statistics portion 4's installation, guarantee this random variable proof box's normal use, drawer 4 a's front end is equipped with just draws recess 4b, the realization is to the concentrated collection of test article, the follow-up statistics of the test result of being convenient for, just draw recess 4b for making things convenient for taking out of drawer 4 a.
The utility model discloses an in an embodiment, adopt the teaching of above-mentioned structure to use random variable proof box, to shelter from post 2c and insert the jack of inlet pipe 2a department, then can put into hopper 2b with the experimental trial-object of using of random variable inside as the spheroid, the existence that shelters from post 2c this moment can control experimental beginning or not, when experimental beginning, take out and shelter from post 2c, the trial-object is vertical to fall down, get into the collection statistics portion 4 at both ends under the effect that shelters from post 2c at last, the experiment finishes the back, through pulling out every trial-object of collecting statistics portion 4 inside collection of drawer 4a statistics, similar throw the coin many times generally, can accomplish the random variable who gets into different collection statistics portion 4 inside trial-object, it is experimental finally to accomplish the random variable.
It is worth noting that the fixing connection of the utility model adopts the connection mode of screw connection.
The teaching random variable test box of the embodiment has the following advantages:
the test device is provided with the test article inlet part 2, the collection counting part 4 and the separation part 5, multiple random variable tests can be carried out at one time by matching the test article inlet part 2, the collection counting part 4 and the separation part 5, meanwhile, the statistical process of test data is simpler, the defects that the traditional random variable test needs to be carried out for one time and the data statistics is carried out for one time are effectively overcome, the time required by the test is greatly reduced, great convenience is brought to the test process of teachers and students, and the teaching efficiency of the teachers and the learning efficiency of the students are improved;
possess observation portion 3, through observation portion 3's existence, make things convenient for the student to realize the observation to the experimentation through observation portion 3, deepen student's experimental impression, and then deepen student's learning effect, the function is more comprehensive, the popularization and the use of the product of being convenient for.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A random variable test box for teaching is characterized in that: comprises a box body (1), an observation part (3) and a collection statistical part (4);
the box body (1) is of a hollow structure, the upper end of the box body (1) is provided with a test article inlet part (2), and the middle part of the box body (1) is provided with a separation part (5);
the observation part (3) is positioned at the front end of the box body (1);
the number of the collecting and counting parts (4) is two and the collecting and counting parts are respectively positioned at the left end and the right end of the box body (1).
2. A random variable proof box for teaching use according to claim 1, wherein: the experimental article inlet part (2) comprises an inlet pipe (2a), the inlet pipe (2a) is provided with a shielding column (2c), and the upper end of the inlet pipe (2a) is fixedly connected with a hopper (2 b).
3. A random variable proof box for teaching according to claim 2, wherein: the feeding pipe (2a) is provided with a jack corresponding to the shielding column (2c), and the feeding pipe (2a) penetrates through the jack.
4. A random variable proof box for teaching use according to claim 1, wherein: the separation part (5) is a partition plate which is positioned under the feeding pipe (2a), and the thickness of the partition plate is reduced from top to bottom in sequence.
5. A random variable proof box for teaching use according to claim 1, wherein: the observation part (3) is made of toughened glass, the front end of the box body (1) is provided with a mounting groove corresponding to the toughened glass, and the toughened glass and the mounting groove are installed in a matched mode.
6. A random variable proof box for teaching use according to claim 1, wherein: the statistical collecting part (4) comprises a drawer (4a), and a conveniently-pulled groove (4b) is formed in the front end of the drawer (4 a).
7. A random variable proof box for teaching use according to claim 1, wherein: the drawer is characterized in that a drawer groove corresponding to the drawer (4a) is formed in the box body (1), and the drawer (4a) and the drawer groove are installed in a matched mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120954545.1U CN214541244U (en) | 2021-05-07 | 2021-05-07 | Random variable test box for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120954545.1U CN214541244U (en) | 2021-05-07 | 2021-05-07 | Random variable test box for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214541244U true CN214541244U (en) | 2021-10-29 |
Family
ID=78277649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120954545.1U Expired - Fee Related CN214541244U (en) | 2021-05-07 | 2021-05-07 | Random variable test box for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214541244U (en) |
-
2021
- 2021-05-07 CN CN202120954545.1U patent/CN214541244U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110689771A (en) | Comprehensive intelligent system for experiment teaching | |
| CN214541244U (en) | Random variable test box for teaching | |
| CN206726552U (en) | A kind of multi-functional Chinese literature study Graphic Panel | |
| CN210865219U (en) | Music teaching auxiliary device | |
| CN206021618U (en) | A kind of College English interactive teaching device | |
| CN206505557U (en) | A kind of instructional device of electronic information technology | |
| CN203520649U (en) | English teaching aid making teaching conveniently | |
| CN104599551B (en) | Teaching aid capable of comparing east-west law difference and convenient for class case teaching | |
| CN206639398U (en) | A kind of laboratory teaching experimental facilities | |
| CN209015492U (en) | English card showing stand and English card | |
| CN207951527U (en) | A kind of new E P pipe storing units | |
| CN206524017U (en) | A kind of multi-functional literal arts history course teaching plate | |
| CN206906474U (en) | A kind of intelligent detecting instrument | |
| CN215685562U (en) | Wisdom classroom reforms transform and uses multi-functional teacher podium | |
| CN203013035U (en) | Analyzing, judging and practicing device for English grammar teaching | |
| CN215895702U (en) | Oral english teaching device | |
| CN203838892U (en) | English vocabulary kind analysis and determination teaching apparatus | |
| CN213593987U (en) | Be used for economy teaching mapping instrument | |
| CN213935343U (en) | University's mathematics probability presentation device | |
| CN204390513U (en) | One can contrast law difference between east and west and be convenient to classroom case teaching teaching aid | |
| CN218768487U (en) | Model display device for high school mathematics | |
| CN205112774U (en) | Chi is used in business administration teaching | |
| CN211375904U (en) | Tool rack for mathematical education | |
| CN203596115U (en) | College English bidirectional translating, reading, listening, and writing practice device | |
| CN213024986U (en) | Superimposed normal distribution probability demonstration device |
Legal Events
| 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: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |