CN201069615Y

CN201069615Y - A demonstration model for teaching

Info

Publication number: CN201069615Y
Application number: CNU2007200625342U
Authority: CN
Inventors: 张庭廷; 夏晓凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-15
Filing date: 2007-02-15
Publication date: 2008-06-04
Anticipated expiration: 2017-02-15

Abstract

The utility model is related to a demonstrating model for teaching, which fabricates out basic coursewares according to the teaching content re-recorded from lac operon and RNA. The utility model is characterized in that: the demonstrating model comprises a strip-shoed fixing sheet, a sliding block sleeved on the strip-shaped fixing sheet, a groove provided on the sliding block which is just matched with the strip-shaped fixing sheet; wherein, the sliding block is sleeved on the strip-shaped fixing sheet through the groove and can traverse along the strip-shaped fixing sheet; a winding drum mechanism is arranged at the back of the sliding block, which is rolled with a demonstrating ribbon winding made of soft materials; the ribbon winding extends out to the facade of the sliding block through a trench hole on the sliding block, which can protrude or crimple along with the move of the sliding block on the strip-shaped sheet. Various courseware can apply PC boards as the basic material; charts compiled according to the teaching contents are adhered on the facade of the board, which will correspond with each other respectively for the charts on the strip-shaped fixing sheet, the sliding block and the ribbon winding.

Description

A kind of teaching demonstrating model

Technical field

The utility model belongs to a kind of classroom instruction demonstrating model, especially a kind ofly is applied to the demonstrating model that the gene medical teaching is used.Mainly be adapted in each professional biological chemistry classroom instruction, resolve some difficult point teaching of genetics.

Background technology

In teaching, the student understands the knowledge of being learned for convenience, often uses the demonstration courseware of some teaching modes as teaching, better understands some very abstract concept knowledge.But, be different for the content of the different required demonstrations of the content of courses, and demonstrate with different teaching modes that the effect that is reached also is different with a kind of content of courses.At present, the human gene technology enters the genome times afterwards comprehensively, and the focus of research turns to functional study from order-checking; Gene theory and relativity, quantum theory and information theory etc. have become four big basic theories of modern science, related theory is very abstract, yet the teaching courseware of at present relevant biological heredity gene, not only scattered but also do not become system, flash and mistake on the classroom, the student does not understand that the teacher lacks the teaching passion that the student lacks subjective initiative.Therefore, provide a cover directly perceived light and handy, can be with the dynamic teaching model of the process handled easily of giving lessons, finish easily in these biochemistry teaching such as the transcribing of dna replication dna, lactose operon and RNA, protein synthesis and engineered basic step be emphasis be again that the task of giving lessons of difficult point content then seems particularly important.

The utility model content

The purpose of this utility model is: at the deficiency of existing teaching demonstration model, exploitation one cover is adapted to the demonstrating model of the content of courses of " lactose operon and RNA transcribe ".

The purpose of this utility model is achieved through the following technical solutions: basic play pieces is produced in the content of courses of transcribing according to lactose operon and RNA, it is characterized in that: described demonstrating model comprises that is a strip stator, on the strip stator, be with a sliding shoe, one groove is arranged on the sliding shoe, groove just in time matches with the strip stator, sliding shoe is enclosed within on the strip stator by groove, and can move around along the strip stator; On the back side of sliding shoe, be provided with a drum mechanism built, volume has the demonstration winding that a soft material is made on the drum mechanism built, the demonstration winding reaches the front of sliding shoe by the slotted eye on the sliding shoe, and demonstration winding winding can be stretched out or crispaturas with sliding shoe moving on the strip stator.Various play pieces all can adopt the PC plate as stock, are pasted with the chart of working out according to the content of courses in the front of plate, and make chart on the strip stator and the chart on the sliding shoe, and the chart in the winding becomes the relation of mutual correspondence.

Basic making of the present utility model and demenstration method are: the utility model be mainly used in teaching, have three aspect situation, during the knowledge of the certain relation of existence is given lectures each other, at first with knowledge content on the one hand, text or figure according to theoretical content needs air brushing corresponding theory content on bright film, again air brushing is had the bright film of text or figure to stick on the PVC plate, and to cut the PVC plate as required be the strip stator; Knowledge content that again will be on the other hand is with the text or the figure of air brushing corresponding theory content on the bright film, air brushing had the bright film of text or figure to stick on the PVC plate that is thicker than the strip stator again, cuts into required shape as required, the formation sliding shoe.Simultaneously, leave one and the corresponding groove of strip stator at the back side of PVC plate, and one rotational structure is installed at the back side of PVC plate, rotational structure is a rotating shaft, rotating shaft is inserted in the optional position at the sliding shoe back side, volume has a winding in rotating shaft, and the knowledge of the relevant third aspect of aspect front two content is arranged on the surface of winding, and winding can be stretched out or crispaturas with the rotation of rotating shaft.The utility model is particularly suitable for the content of courses of demonstration " lactose operon and RNA transcribe ".

Advantage of the present utility model is: prove that by teaching practice in today that the computer courseware is popularized day by day, the ocular demonstration model of Simple Dynamic in the teaching of biological chemistry, biogenetics and some other subjects, still has its irreplaceability.Particularly in the relatively poor basic unit of condition, these easy ocular demonstration models but can be brought into play in speaker's hand masterlyly, use, in the hope of reaching the demand of superfine course construction handyly.We are applied to the utility model on each professional biological chemistry classroom, discovery obviously comes to life classroom atmosphere, because parsing teaching difficulty novel form is lively directly perceived, thereby improved the classroom absorptivity of dna replication dna and protein biosynthesizing lecture contents significantly.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model;

Fig. 2 is the texture edge synoptic diagram of an embodiment of the utility model;

Fig. 3 is the texture edge enlarged diagram of another embodiment of the utility model.

Embodiment

Accompanying drawing has provided embodiment of the present utility model, and the utility model will be further described below in conjunction with embodiment.

Embodiment one

From accompanying drawing 1 as can be seen, the utility model is the regulation mechanism teaching demonstration model of transcribing of a kind of RNA and lactose operon.Be with a long 150cm, the bright film of wide 10cm is by arrangement figure shown in Figure 1., as base material bright film is attached on the VC sheet material material with PVC sheet material material, is made into strip demonstration board stator 1, in the 1 substrate backside embedding of demonstration board stator with magnet to be fixed in blackboard.Be with a sliding shoe 2 on strip demonstration board stator 1, sliding shoe 2 posts figure shown in Figure 1, representative content on the other hand.Have and the wide chute 3 of strip demonstration board stator at sliding shoe 2 back sides, sliding shoe 2 can slide on strip demonstration board stator 1 by chute 3.For the displaing core enzyme slides on sense strand, and the RNA chain that newly synthesizes with slip constantly prolongs, used the structure of similar leather measuring tape, it makes enzyme whenever move a segment distance, get final product sagging one section cloth that shows the RNA chain, until termination factor occurring, a new synthetic RNA primary transcription product promptly forms.This structure is also to have rectangle slotted eye 4 at the middle part of sliding shoe, be installed with the demonstration winding 5 that soft material is made in the rectangle slotted eye 4, demonstration winding 5 reaches the front of sliding shoe 2 by the slotted eye on the sliding shoe 24, demonstration winding 5 is marked with figure as shown in Figure 1, represent the content of the third aspect, be provided with the drum mechanism built 6 that is used for rolling or uncoiling demonstration winding at the back side of sliding shoe 2, demonstration volume 5 bands are wrapped in drum mechanism built 6, and can be with the rotation uncoiling or the rolling of drum mechanism built 6.Described drum mechanism built 6 can be installed in the top of sliding shoe 2, also can be installed in the bottom, be a kind of manual rotary shaft drum mechanism built, rotating shaft 7 directly is inserted in the sliding shoe 2, and can in sliding shoe, rotate, residing sliding shoe 2 positions, the middle part of rotating shaft 7 have one and are used to install the groove 8 that demonstration is with, the middle part of rotating shaft links together with the afterbody of demonstration winding, so demonstration winding 5 can uncoiling or rolling with the rotation of rotating shaft 7.

Embodiment two

Embodiment two is the same with the principle of embodiment one, difference is described drum mechanism built 6 ' for pinion and rack, strip demonstration board stator 1 ' upper end or lower end be provided with grinding tooth tooth bar 9, sliding shoe 2 ' on also be provided with it the grinding tooth gear 10 that cooperates, sliding shoe 2 ' be strip demonstration board stator 1 ' tooth bar 9 on move, along with sliding shoe 2 ' strip demonstration board stator 1 ' move, be installed in sliding shoe 2 ' interior gear 10 also will rotate thereupon, drum mechanism built 6 ' winding demonstration be with 5 ' be wrapped in rotating shaft 7 ' on, and be meshed with sliding shoe gear 10 by a pair of conical gear 11.Drum mechanism built 6 ' rotate by the rotation of gear 11, therefore can realize along with sliding shoe 2 ' move the slotted eye 4 of demonstration winding 5 ' can be by opening ' stretch out automatically or withdraw in 2 ' front.Be more convenient for like this demonstrating.

Claims

1. teaching demonstrating model, it is characterized in that: described demonstrating model comprises that is a strip stator, on the strip stator, be with a sliding shoe, one groove is arranged on the sliding shoe, groove just in time matches with the strip stator, sliding shoe is enclosed within on the strip stator by groove, and can move around along the strip stator; On the back side of sliding shoe, be provided with a drum mechanism built, volume has the demonstration winding that a soft material is made on the drum mechanism built, the demonstration winding reaches the front of sliding shoe by the slotted eye on the sliding shoe, and demonstration winding winding can be stretched out or crispaturas with sliding shoe moving on the strip stator.

2. demonstrating model as claimed in claim 1, it is characterized in that: have the rectangle slotted eye at the middle part of sliding shoe, be installed with the demonstration winding that soft material is made in the rectangle slotted eye, the demonstration winding reaches the front of sliding shoe by the slotted eye on the sliding shoe, be provided with the drum mechanism built that is used for rolling or uncoiling demonstration winding at the back side of sliding shoe, the demonstration winding is wrapped in drum mechanism built, and can be with the rotation uncoiling or the rolling of drum mechanism built.

3. demonstrating model as claimed in claim 1 or 2 is characterized in that: described drum mechanism built is installed in the top of sliding shoe or is installed in the bottom.

4. demonstrating model as claimed in claim 1 or 2, it is characterized in that: described drum mechanism built is manual rotary shaft drum mechanism built, rotating shaft directly is inserted in the sliding shoe, and can in sliding shoe, rotate, residing sliding shoe position, the middle part of rotating shaft, have one and be used to install the groove that demonstration is with, the middle part of rotating shaft links together with the afterbody of demonstration winding, so the demonstration winding can uncoiling or rolling with the rotation of rotating shaft.

5. demonstrating model as claimed in claim 1 or 2, it is characterized in that: described drum mechanism built is a pinion and rack, upper end or lower end at strip demonstration board stator are provided with the grinding tooth tooth bar, on sliding shoe, also be provided with the grinding tooth gear that cooperates with it, sliding shoe is to move on the tooth bar of strip demonstration board stator, along with sliding shoe moving at strip demonstration board stator, the gear that is installed in the sliding shoe also will rotate thereupon, the drum mechanism built of demonstration band is meshed with the sliding shoe gear, and rotates by the rotation of gear.