CN107025827B - A kind of applied mathematics probability event teaching method and device - Google Patents
A kind of applied mathematics probability event teaching method and device Download PDFInfo
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- CN107025827B CN107025827B CN201710425074.3A CN201710425074A CN107025827B CN 107025827 B CN107025827 B CN 107025827B CN 201710425074 A CN201710425074 A CN 201710425074A CN 107025827 B CN107025827 B CN 107025827B
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- ball
- rotating shaft
- pedestal
- hollow rotating
- motor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
Abstract
The invention discloses a kind of instructional devices of applied mathematics probability event, including pedestal, ball-distributer is fixedly installed above the inner sidewall of pedestal, the top of ball-distributer is connected with storing mechanism by support frame, storing mechanism includes fixed ball storage hopper on the support frame, hollow rotating shaft, motor, transmission mechanism and lower ball turntable, the upper end of ball storage hopper is provided with cover board, the side of cover board offers ball hole, motor is arranged on the cover board, motor is connected by transmission mechanism with hollow rotating shaft, hollow rotating shaft upper end is mounted in the middle part of cover board by bearing, the lower port of hollow rotating shaft passes through the falling sphere turntable being arranged below ball storage hopper；Solenoid valve is provided on falling sphere turntable, solenoid valve is electrically connected with the controller of setting on the support frame；The device can preferably at school when increase the interest of classmates and preferably judge that the randomness of probability, the more vivid characteristic for representing probability improve learning quality, design is reasonable, securely and reliably by setting demonstration ball and coin.
Description
Technical field
The present invention relates to mathematical education equipment technical field, in particular to a kind of applied mathematics probability event teaching method and
Device.
Background technique
In Probability teaching, since beginner can not understand the principle of probability and leading to the problem of for probability,
Need to use Probability teaching demonstration device when carrying out Probability explanation, by intuitively drill to certain part things
Show, allows the viewer to the generation process for enough getting information about probability, be more conducive to the cognition to probability.
But Probability teaching demonstration device at this stage, be mostly by simple structure composition, by user manually into
Row operation, is then manually counting, and final result is reflected to student, although this device structure is simple, cost is relatively low,
But use and be inconvenient, people's most intuitively observation experience can not be given, and be easy to influence probability thing by various factors
The generation of part, therefore a variety of exclusive requirements when can not meet well at this stage to Probability teaching demonstration.
Summary of the invention
The purpose of the present invention is to provide a kind of applied mathematics probability event teaching method and devices, to solve above-mentioned background
The problem of being proposed in technology.
The present invention provides a kind of instructional device of applied mathematics probability event, including pedestal, the base end face setting
Fluted, the bottom surface of pedestal is equipped with external slide rail and interior sliding rail, the lateral wall of the external slide rail and pedestal closely, the interior sliding rail
Closely with the inner sidewall of pedestal, the inside of pedestal is equipped with multiple partitions, sliding block card of the partition by setting on its bottom surface
It connects on the slide rail, multiple counting inductors is additionally provided on the inner sidewall of the pedestal；Fixation is set above the inner sidewall of the pedestal
It is equipped with ball-distributer, the ball-distributer is the bullet of point upward, and the top of ball-distributer is connected with storing mechanism by support frame,
The storing mechanism includes fixed ball storage hopper, hollow rotating shaft, motor, transmission mechanism and lower ball turntable on the support frame, described
The upper end of ball storage hopper is provided with cover board, and the side of the cover board offers ball hole, and on the cover board, motor is logical for the motor setting
It crosses transmission mechanism to be connected with hollow rotating shaft, the hollow rotating shaft upper end is mounted in the middle part of cover board by bearing, hollow rotating shaft
Lower port passes through the falling sphere turntable being arranged below ball storage hopper；Be provided with solenoid valve on the falling sphere turntable, the solenoid valve with set
Controller electrical connection on the support frame is set, the controller is also electrically connected with motor and counting inductor respectively.
Preferably, the upper end of the hollow rotating shaft is provided with coin inlet.
Preferably, being fixedly installed stirring rod on the hollow rotating shaft.
Preferably, being equipped with 90 ° of corner at the lower port of the hollow rotating shaft.
Preferably, the material of the pedestal is transparent glass, and the partition on pedestal is no less than five.
Preferably, being provided with Shockproof rubber pad below the pedestal.
A kind of teaching method of applied mathematics probability event, comprising the following steps:
(1) preparation: teaching is ready to demonstration ball and coin, and completely counts out demonstrate the total of ball and coin respectively
Number；
(2) starting device: motor is opened, motor drives hollow rotating shaft rotation, while demonstration ball is poured into storage from ball hole
In ball bucket, coin is put into hollow rotating shaft from coin inlet；
(3) solenoid valve on falling sphere turntable is opened by controller；
(4) demonstration ball is counted by sensor for countering and coin falls into quantity in each groove, and then can be convenient
Calculate probability.
The present invention compared to the prior art, the advantage is that:
The present invention provides a kind of applied mathematics probability event teaching method and device, preferably at school when increase classmate
Interest, enlivened classroom atmosphere, by setting demonstration ball and coin, preferably judged the randomness of probability, it is more vivid
The characteristic for representing probability, improve learning quality, by be arranged stirring rod, preferably improve the uniformity of falling sphere, mention
The high accuracy of probability, counts demonstration ball by sensor for countering and coin falls into quantity in each groove, Jin Erke
It easily to calculate probability, has saved the time, and structure is simple, reasonable design, easy operation, securely and reliably.
Detailed description of the invention
Fig. 1 is a kind of applied mathematics probability event instructional device structural schematic diagram provided by the invention；
Fig. 2 is base schematic diagram；
Fig. 3 is base slide schematic diagram；
Fig. 4 is partition schematic diagram.
Description of symbols:
1, pedestal；11, groove；12, partition；12-1, sliding block；13, lateral wall；14, inner sidewall；15, external slide rail；16, interior
Sliding rail；2, ball-distributer；3, support frame；4, storing mechanism；41, ball storage hopper；42, hollow rotating shaft；43, motor；44, transmission mechanism；
45, falling sphere turntable；46, cover board；47, bearing；48, ball hole；50, lower port；51, coin inlet；52, solenoid valve；53, it stirs
Stick；6, controller；7, sensor for countering.
Specific embodiment
With reference to the accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection scope be not limited by the specific implementation.
As shown in Figs 1-4, the embodiment of the invention provides a kind of instructional devices of applied mathematics probability event, including pedestal
1,1 bottom surface of the pedestal setting fluted 11, the bottom surface of pedestal 1 is equipped with external slide rail 15 and interior sliding rail 16, the external slide rail 15
Closely with the lateral wall 13 of pedestal 1, the inner sidewall 14 of the interior sliding rail 16 and pedestal 1 closely, the inside of pedestal 1 be equipped with it is multiple every
Plate 12, the partition 12 are clamped on the slide rail, on the inner sidewall 14 of the pedestal 1 by the sliding block 12-1 of setting on its bottom surface
It is additionally provided with multiple counting inductors 7；Ball-distributer 2 is fixedly installed above the inner sidewall 14 of the pedestal 1, the ball-distributer 2 is
The top of the bullet of point upward, ball-distributer 2 is connected with storing mechanism 4 by support frame 3, and the storing mechanism 4 includes solid
Ball storage hopper 41, hollow rotating shaft 42, motor 43, transmission mechanism 44 and the lower ball turntable 45 being scheduled on support frame 3, the ball storage hopper 41
Upper end be provided with cover board 46, the side of the cover board 46 offers ball hole 48, and the motor 43 is arranged on cover board 46, electricity
Machine 43 is connected by transmission mechanism 44 with hollow rotating shaft 42, and 42 upper end of hollow rotating shaft is mounted on cover board 46 by bearing 47
Middle part, the lower port 50 of hollow rotating shaft 42 pass through the falling sphere turntable 45 being arranged below ball storage hopper 41；It is set on the falling sphere turntable 45
Be equipped with solenoid valve, the solenoid valve is electrically connected with the controller 6 being arranged on support frame 3, the controller 6 also respectively with motor
43 are electrically connected with inductor 7 is counted.
In embodiments of the present invention, the upper end of the hollow rotating shaft 42 is provided with coin inlet 51；The hollow rotating shaft 42
On be fixedly installed stirring rod 55, the setting of stirring rod is conducive to demonstrate ball and is uniformly distributed in ball storage hopper, and then can be improved
The accuracy of probability；90 ° of corner is equipped at the lower port 50 of the hollow rotating shaft 42；The material of the pedestal 1 is transparent glass
Glass, and the partition 12 on pedestal 1 is no less than five；Shockproof rubber pad is provided with below the pedestal 1.
A kind of teaching method of applied mathematics probability event, comprising the following steps:
(1) preparation: teaching is ready to demonstration ball and coin, and completely counts out demonstrate the total of ball and coin respectively
Number；
(2) starting device: motor is opened, motor drives hollow rotating shaft rotation, while demonstration ball is poured into storage from ball hole
In ball bucket, coin is put into hollow rotating shaft from coin inlet；
(3) solenoid valve on falling sphere turntable is opened by controller；
(4) demonstration ball is counted by sensor for countering and coin falls into quantity in each groove, and then can be convenient
Calculate probability.
In conclusion a kind of applied mathematics probability event teaching method provided in an embodiment of the present invention and device, preferably
The interest for increasing classmates when at school, has enlivened classroom atmosphere, by setting demonstration ball and coin, preferably judges probability
Randomness, the more vivid characteristic for representing probability, improves learning quality, by the way that stirring rod is arranged, preferably improves
The uniformity of falling sphere improves the accuracy of probability, counts demonstration ball by sensor for countering and coin falls into each groove
In quantity, and then what be can be convenient calculates probability, has saved the time, and structure is simple, reasonable design, easy operation, peace
It is complete reliable.
Disclosed above is only several specific embodiments of the invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (6)
1. a kind of instructional device of applied mathematics probability event, including pedestal (1), which is characterized in that pedestal (1) bottom surface is set
It is equipped with groove (11), the bottom surface of pedestal (1) is equipped with external slide rail (15) and interior sliding rail (16), the external slide rail (15) and pedestal
(1) closely, closely, the inside of pedestal (1) is equipped with the inner sidewall (14) of the interior sliding rail (16) and pedestal (1) lateral wall (13)
Multiple partitions (12), the partition (12) are clamped on the slide rail by the sliding block (12-1) of setting on its bottom surface, the pedestal
(1) multiple counting inductors (7) are additionally provided on inner sidewall (14)；Fixed setting above the inner sidewall (14) of the pedestal (1)
Have ball-distributer (2), the ball-distributer (2) is the bullet of point upward, and the top of ball-distributer (2) is connected by support frame (3)
Have storing mechanism (4), the storing mechanism (4) include be fixed on support frame (3) ball storage hopper (41), hollow rotating shaft (42),
The upper end of motor (43), transmission mechanism (44) and falling sphere turntable (45), the ball storage hopper (41) is provided with cover board (46), the lid
The side of plate (46) offers ball hole (48), and the motor (43) is arranged on cover board (46), and motor (43) passes through driver
Structure (44) is connected with hollow rotating shaft (42), and hollow rotating shaft (42) upper end is mounted in cover board (46) by bearing (47)
The upper end in portion, the hollow rotating shaft (42) is provided with coin inlet (51), and the lower port (50) of hollow rotating shaft (42) passes through storage ball
The falling sphere turntable (45) being arranged below bucket (41)；Solenoid valve, the solenoid valve and setting are provided on the falling sphere turntable (45)
Controller (6) electrical connection on support frame (3), the controller (6) are also electric with motor (43) and counting inductor (7) respectively
Connection.
2. a kind of instructional device of applied mathematics probability event as described in claim 1, which is characterized in that the hollow rotating shaft
(42) stirring rod (53) are fixedly installed on.
3. a kind of instructional device of applied mathematics probability event as described in claim 1, which is characterized in that the hollow rotating shaft
(42) 90 ° of corner is equipped at lower port (50).
4. a kind of instructional device of applied mathematics probability event as described in claim 1, which is characterized in that the pedestal (1)
Material be transparent glass, and the partition (12) on pedestal (1) is no less than five.
5. a kind of instructional device of applied mathematics probability event as described in claim 1, which is characterized in that the pedestal (1)
Below be provided with Shockproof rubber pad.
6. a kind of based on a kind of teaching method of the instructional device of applied mathematics probability event described in claim 1, feature
It is, comprising the following steps:
(1) preparation: teaching is ready to demonstration ball and coin, and completely counts out the sum of demonstration ball and coin respectively；
(2) starting device: motor is opened, motor drives hollow rotating shaft rotation, while demonstration ball is poured into ball storage hopper from ball hole
In, coin is put into hollow rotating shaft from coin inlet；
(3) solenoid valve on falling sphere turntable is opened by controller；
(4) demonstration ball is counted by sensor for countering and coin falls into quantity in each groove, and then the meter that can be convenient
Calculate probability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710425074.3A CN107025827B (en) | 2017-06-08 | 2017-06-08 | A kind of applied mathematics probability event teaching method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710425074.3A CN107025827B (en) | 2017-06-08 | 2017-06-08 | A kind of applied mathematics probability event teaching method and device |
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| Publication Number | Publication Date |
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| CN107025827A CN107025827A (en) | 2017-08-08 |
| CN107025827B true CN107025827B (en) | 2019-08-16 |
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| CN201710425074.3A Active CN107025827B (en) | 2017-06-08 | 2017-06-08 | A kind of applied mathematics probability event teaching method and device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107527536B (en) * | 2017-09-20 | 2019-08-30 | 潍坊科技学院 | A kind of mathematical probabilities teaching emulator device |
| CN107901678A (en) * | 2017-10-27 | 2018-04-13 | 董国玉 | A kind of mathematical education multifunctional assisting device |
| CN107680449B (en) * | 2017-11-22 | 2019-11-05 | 绍兴君合新材料科技有限公司 | A kind of mathematical education probability demonstration equipment |
| CN108735050A (en) * | 2018-05-25 | 2018-11-02 | 韩翔凌 | A kind of College Maths probability event teaching demonstration device |
| CN108961937A (en) * | 2018-08-09 | 2018-12-07 | 许昌学院 | A kind of higher mathematics teaching demonstration device and application method |
| CN109686195B (en) * | 2019-02-22 | 2020-09-22 | 哈尔滨学院 | Demonstration device for discrete mathematical probability experiment |
| CN111653159A (en) * | 2020-01-16 | 2020-09-11 | 高天驰 | Mathematical probability demonstration device |
| CN111145617A (en) * | 2020-01-18 | 2020-05-12 | 西安文理学院 | Mathematical probability demonstration device |
| CN111127983A (en) * | 2020-01-19 | 2020-05-08 | 西安文理学院 | Mathematical probability demonstration device |
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| US4048731A (en) * | 1976-08-24 | 1977-09-20 | Anastasia Baguioro | Educational game apparatus |
| CN102522031A (en) * | 2012-01-03 | 2012-06-27 | 西安电子科技大学 | Demonstration instrument for Buffon probability experiment |
| CN204348174U (en) * | 2015-01-15 | 2015-05-20 | 王祥盛 | A kind of demonstration device for probability |
| CN105513462A (en) * | 2016-02-16 | 2016-04-20 | 南阳理工学院 | High-precision probability theory and mathematical statistical principle networked demonstration device |
| CN205507961U (en) * | 2016-04-06 | 2016-08-24 | 吴亚楠 | Teaching is with lots device |
| CN106157753A (en) * | 2016-09-19 | 2016-11-23 | 安徽理工大学 | A kind of mathematical probabilities teaching emulator and control system thereof |
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- 2017-06-08 CN CN201710425074.3A patent/CN107025827B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048731A (en) * | 1976-08-24 | 1977-09-20 | Anastasia Baguioro | Educational game apparatus |
| CN102522031A (en) * | 2012-01-03 | 2012-06-27 | 西安电子科技大学 | Demonstration instrument for Buffon probability experiment |
| CN204348174U (en) * | 2015-01-15 | 2015-05-20 | 王祥盛 | A kind of demonstration device for probability |
| CN105513462A (en) * | 2016-02-16 | 2016-04-20 | 南阳理工学院 | High-precision probability theory and mathematical statistical principle networked demonstration device |
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| CN106157753A (en) * | 2016-09-19 | 2016-11-23 | 安徽理工大学 | A kind of mathematical probabilities teaching emulator and control system thereof |
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| CN107025827A (en) | 2017-08-08 |
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