CN204667711U - A kind of exponential function is launched into power series demonstrator - Google Patents
A kind of exponential function is launched into power series demonstrator Download PDFInfo
- Publication number
- CN204667711U CN204667711U CN201520364395.3U CN201520364395U CN204667711U CN 204667711 U CN204667711 U CN 204667711U CN 201520364395 U CN201520364395 U CN 201520364395U CN 204667711 U CN204667711 U CN 204667711U
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- China
- Prior art keywords
- measuring cup
- volume
- launched
- exponential function
- individual unit
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Abstract
The utility model relates to education and instruction apparatus, and a kind of exponential function is launched into power series demonstrator and forms primarily of a container and one group of measuring cup, and the volume of described container is e
3individual unit, the measuring cup number of described one group of measuring cup is many as far as possible, and first described measuring cup volume is 1 unit, and second described measuring cup volume is 3 units, and the 3rd described measuring cup volume is
individual unit, the 4th described measuring cup volume is
individual unit, the 5th described measuring cup volume is
individual unit, by that analogy.The utility model simple structure easily realizes, can make student very intuitively quantize geographical separate every when exponential function is launched into power series and geometric meaning.
Description
Technical field
The utility model relates to education and instruction apparatus, and particularly a kind of exponential function is launched into power series demonstrator, can make student very intuitively quantize geographical separate every when exponential function is launched into power series and geometric meaning.
Background technology
Student needs functional expansion to become progression when learning higher mathematics, as:
as x=3:
if teaching aid demonstration intuitively can be had, student is understood and has good effect, described a kind of exponential function be launched into power series demonstrator can solve understand quantitatively every when exponential function is launched into power series and the problem of geometric meaning.
Utility model content
In order to enrich education and instruction apparatus, solve some apparent problem of series expansion in higher mathematics, the utility model provides a kind of exponential function to be launched into power series demonstrator, can make student very intuitively quantize geographical separate every when exponential function is launched into power series and geometric meaning.
The scheme that the utility model adopts is:
Described a kind of exponential function is launched into power series demonstrator and forms primarily of a container and one group of measuring cup, and the volume of described container is e
3individual unit, the measuring cup number of described one group of measuring cup is many as far as possible, and first described measuring cup volume is 1 unit, and second described measuring cup volume is 3 units, and the 3rd described measuring cup volume is
individual unit, the 4th described measuring cup volume is
individual unit, the 5th described measuring cup volume is
individual unit, by that analogy.
The beneficial effects of the utility model are:
Described a kind of exponential function is launched into power series demonstrator simple structure and easily realizes, can make student very intuitively quantize geographical separate every when exponential function is launched into power series and geometric meaning.
Accompanying drawing explanation
Further illustrate below in conjunction with figure of the present utility model:
Fig. 1 is first described measuring cup schematic diagram;
Fig. 2 is second described measuring cup schematic diagram;
Fig. 3 is the 3rd described measuring cup schematic diagram;
Fig. 4 is the 4th described measuring cup schematic diagram;
Fig. 5 is the 5th described measuring cup schematic diagram;
Fig. 6 is described container schematic diagram.
Embodiment
Being 1 unit if Fig. 1 is measuring cup schematic diagram volume as described in first, is 3 units if Fig. 2 is measuring cup schematic diagram volume as described in second, if Fig. 3 is that as described in the 3rd, measuring cup schematic diagram volume is
individual unit, if Fig. 4 is that as described in the 4th, measuring cup schematic diagram volume is
individual unit, if Fig. 5 is that as described in the 5th, measuring cup schematic diagram volume is
individual unit, as Fig. 6 be as described in container schematic diagram volume be e
3≈ 20.0855 units, the utility model forms primarily of an above-mentioned container and one group of measuring cup, and the measuring cup number of described one group of measuring cup is many as far as possible.
Embodiment one: during demonstration, first fill described container with water, first described measuring cup, second described measuring cup, the 3rd described measuring cup, the 4th described measuring cup, the 5th described measuring cup is injected successively respectively without water clock again with the water in described container ... a to the last measuring cup, observation of students can fill each one group of described measuring cup to: the water in described container.
Embodiment two: during demonstration, first fills each described one group of measuring cup with water, then pours described container successively into without water clock ground, observation of students to: always can not overfill described container, but the volume e of container described in infinite approach
3individual unit.
Claims (1)
1. exponential function is launched into a power series demonstrator, forms, it is characterized in that primarily of a container and one group of measuring cup: the volume of described container is e
3individual unit, the measuring cup number of described one group of measuring cup is many as far as possible, and first described measuring cup volume is 1 unit, and second described measuring cup volume is 3 units, and the 3rd described measuring cup volume is
individual unit, the 4th described measuring cup volume is
individual unit, the 5th described measuring cup volume is
individual unit, by that analogy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364395.3U CN204667711U (en) | 2015-05-25 | 2015-05-25 | A kind of exponential function is launched into power series demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364395.3U CN204667711U (en) | 2015-05-25 | 2015-05-25 | A kind of exponential function is launched into power series demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204667711U true CN204667711U (en) | 2015-09-23 |
Family
ID=54138071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520364395.3U Expired - Fee Related CN204667711U (en) | 2015-05-25 | 2015-05-25 | A kind of exponential function is launched into power series demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204667711U (en) |
-
2015
- 2015-05-25 CN CN201520364395.3U patent/CN204667711U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160525 |