CN203232609U - Exponential function demonstration device - Google Patents
Exponential function demonstration device Download PDFInfo
- Publication number
- CN203232609U CN203232609U CN 201320228692 CN201320228692U CN203232609U CN 203232609 U CN203232609 U CN 203232609U CN 201320228692 CN201320228692 CN 201320228692 CN 201320228692 U CN201320228692 U CN 201320228692U CN 203232609 U CN203232609 U CN 203232609U
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- exponential function
- axis
- demonstration device
- indicateing arm
- axes
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Abstract
The utility model discloses an exponential function demonstration device which resolves problems in the prior art that teaching is not intuitionistic, the study process is affected and study time is wasted. A cross transverse gauge is installed within a sheet frame. The Y axis of the cross transverse gauge is provided with tick marks and the X axis of the cross transverse gauge is provided with tick marks as well. The curve template of the exponential function which is y=e<x> is fixedly connected to the cross transverse gauge and is fixed on a position on the Y axis where the reading number of tick mark on the Y axis is one. The curve template of the exponential function which is y=e<x> is provided with a guide way along the curve and a sliding block is arranged within the guide way. A level indicator is installed on the sliding block and the upper end of a vertical indicator is connected to the sliding block. The level indicator is used for indicating the reading numbers of the tick marks on the Y axis and the vertical indicator is used for indicating the reading numbers of tick marks on the X axis. The exponential function demonstration device is used for assisting teaching function.
Description
Technical field
The utility model relates to a kind of function demonstration device, is specifically related to a kind of exponential function demonstration device, belongs to mathematical education utility appliance technical field.
Background technology
The teacher is when the explanation exponential function at present, on the blackboard of being everlasting, draw and explain, the teacher is when carrying out the Freehandhand-drawing diagram, will pass through tabulation, described point, three steps of line just can finish, not only stop over progress on class, and because hand-drawing graphics is directly perceived inadequately, and it is more abstract, the student understands the comparison difficulty, and especially the memory to the exponential function formula is just more difficult, thereby the rule of exponential function is understood difficulty, influenced study schedule, wasted valuable instructional blocks of time, in the course of time, the student easily loses interest to mathematical studying.
The utility model content
The purpose of this utility model is not directly perceived in order to solve the teaching that lacks the exponential function demonstration device in the prior art and cause, and has influenced study schedule, has wasted the problem of instructional blocks of time, and then a kind of exponential function demonstration device is provided.
The technical solution of the utility model is: the exponential function demonstration device comprises that sheet frame, exponential function are
Y=e x Template curve, vertically indicateing arm, horizontal indicateing arm, slide block and cross frame of axes; The cross frame of axes is fixedly mounted in the sheet frame, is carved with scale mark on the Y-axis of cross frame of axes, is carved with scale mark on the X-axis of cross frame of axes, and exponential function is
Y=e x Template curve fixedly connected with the cross frame of axes, and to be fixed in scale mark reading on the Y-axis be 1 position, exponential function is
Y=e x Its curve of template curve upper edge have gathering sill, slide block is arranged in the gathering sill, and horizontal indicateing arm is installed on the slide block, and vertically the upper end of indicateing arm is connected with slide block, horizontal indicateing arm is used to indicate the scale mark reading on the Y-axis, and vertically indicateing arm is used to indicate the scale mark reading on the X-axis.
The exponential function demonstration device also comprises two supporting legs, and two supporting legs are installed on the lower surface of sheet frame.
The exponential function demonstration device also comprises two road wheels, and a road wheel is installed on each supporting leg.
The utility model compared with prior art has following effect: exponential function demonstration device of the present utility model is by adjusting the position of slide block in gathering sill, and read corresponding reading by vertical indicateing arm and horizontal indicateing arm, reflect the rule of exponential function intuitively, auxiliary student understands the rule of exponential function, quickening is to the memory of exponential function formula, improve study schedule, the instructional blocks of time of saves valuable.In addition, the utility model exponential function demonstration device is simple in structure, and it is convenient to use.
Description of drawings
Fig. 1 is the one-piece construction figure of exponential function demonstration device of the present utility model.
Embodiment
Embodiment one: in conjunction with Fig. 1 present embodiment is described, the exponential function demonstration device of present embodiment comprises that sheet frame 1, exponential function are
Y=e x Template curve 2, vertically indicateing arm 3, horizontal indicateing arm 4, slide block 5 and cross frame of axes 6; Cross frame of axes 6 is fixedly mounted in the sheet frame 1, is carved with scale mark on the Y-axis 6-1 of cross frame of axes 6, is carved with scale mark on the X-axis 6-2 of cross frame of axes 6, and exponential function is
Y=e x Template curve 2 fixedly connected with cross frame of axes 6, and to be fixed in scale mark reading on the Y-axis 6-1 be 1 position, exponential function is
Y=e x Its curve of template curve 2 upper edges have gathering sill 2-1, slide block 5 is arranged in the gathering sill 2-1, horizontal indicateing arm 4 is installed on the slide block 5, vertically the upper end of indicateing arm 3 is connected with slide block 5, horizontal indicateing arm 4 is used to indicate the scale mark reading on the Y-axis 6-1, and vertically indicateing arm 3 is used to indicate the scale mark reading on the X-axis 6-2.The exponential function demonstration device comprises that also 7, two supporting legs 7 of two supporting legs are installed on the lower surface of sheet frame 1.The exponential function demonstration device also comprises two road wheels 8, and a road wheel 8 is installed on each supporting leg 7.
Claims (3)
1. exponential function demonstration device, it is characterized in that: the exponential function demonstration device comprises that sheet frame (1), exponential function are
Y=e x Template curve (2), vertically indicateing arm (3), horizontal indicateing arm (4), slide block (5) and cross frame of axes (6); Cross frame of axes (6) is fixedly mounted in the sheet frame (1), is carved with scale mark on the Y-axis (6-1) of cross frame of axes (6), is carved with scale mark on the X-axis (6-2) of cross frame of axes (6), and exponential function is
Y=e x Template curve (2) fixedly connected with cross frame of axes (6), and to be fixed in scale mark reading on the Y-axis (6-1) be 1 position, exponential function is
Y=e x Its curve of template curve (2) upper edge have gathering sill (2-1), slide block (5) is arranged in the gathering sill (2-1), horizontal indicateing arm (4) is installed on the slide block (5), vertically the upper end of indicateing arm (3) is connected with slide block (5), horizontal indicateing arm (4) is used to indicate the scale mark reading on the Y-axis (6-1), and vertically indicateing arm (3) is used to indicate the scale mark reading on the X-axis (6-2).
2. according to the described exponential function demonstration device of claim 1, it is characterized in that: the exponential function demonstration device also comprises two supporting legs (7), and two supporting legs (7) are installed on the lower surface of sheet frame (1).
3. according to the described exponential function demonstration device of claim 2, it is characterized in that: the exponential function demonstration device also comprises two road wheels (8), and a road wheel (8) is installed on each supporting leg (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228692 CN203232609U (en) | 2013-05-02 | 2013-05-02 | Exponential function demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320228692 CN203232609U (en) | 2013-05-02 | 2013-05-02 | Exponential function demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232609U true CN203232609U (en) | 2013-10-09 |
Family
ID=49288717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320228692 Expired - Fee Related CN203232609U (en) | 2013-05-02 | 2013-05-02 | Exponential function demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232609U (en) |
-
2013
- 2013-05-02 CN CN 201320228692 patent/CN203232609U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140502 |