CN202383895U - Regular cone teaching model - Google Patents
Regular cone teaching model Download PDFInfo
- Publication number
- CN202383895U CN202383895U CN2011204797946U CN201120479794U CN202383895U CN 202383895 U CN202383895 U CN 202383895U CN 2011204797946 U CN2011204797946 U CN 2011204797946U CN 201120479794 U CN201120479794 U CN 201120479794U CN 202383895 U CN202383895 U CN 202383895U
- Authority
- CN
- China
- Prior art keywords
- axostylus axostyle
- cone
- splitting
- ordinate
- point
- 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
Landscapes
- Pens And Brushes (AREA)
Abstract
One can visually demonstrate the positive cone shape, and can directly demonstrate coordinate plane section and parallel to the coordinate plane section of the regular cone teaching model. It consists of four double pass through the rubber sleeve and rubber sleeve wire connected to form a dismountable model, when a section of the connecting rubber sleeve on the right side of the wire from the rubber sleeve is pulled out, the coordinate plane section or parallel to the coordinate plane section can be seen directly. The utility model has the advantages of simple structure, convenient assembly and disassembly, demonstration of the effect of visual image, easy to teachers' teaching use, apply to higher mathematics teaching.
Description
Technical field
The utility model patent relates to the teaching mode that cone and parallel cut thereof are just being split in a kind of demonstration, belongs to the teaching aid technical field.
Background technology
At present; Existing stereoscopic teaching model in Higher Mathematics Teaching; Be the model of common regular solids such as cylinder, cone and rotary body mostly; Generally process, be used to show the shape of solid, mainly be used in the teaching of how much chapters of space analysis of higher mathematics course with materials such as organic glass.But when utilizing definite integral to ask the known three-dimensional volume of parallel cut, can relate in the teaching with the circle is the end, and the parallel and line segment that equals end circular diameter is just split cone and parallel cut thereof for the top.Make with organic glass owing to just splitting uncommon also being not easy of cone and parallel cut thereof, cause to lack the visual model demonstration in the teaching, the student can't imagine its shape, more can't know its parallel cut, makes the volume calculation of just splitting cone become teaching difficulty.
Summary of the invention
In order to solve the ocular demonstration problem of just splitting cone and parallel cut thereof; The utility model patent provides a kind of demonstration just splitting the model of cone and parallel cut thereof; This teaching mode not only can be demonstrated out the shape of just splitting cone visual in imagely, and can directly demonstrate out cross section and the cross section that is parallel to coordinate plane on the coordinate plane.
The utility model patent solves the technical scheme that its technical matters adopted: at first; Be made into end round edge frame and top line bar and bottom surface horizontal ordinate axostylus axostyle and the ordinate axostylus axostyle of just splitting cone with tinsel; And the horizontal ordinate axostylus axostyle of bottom surface and the intersection point of ordinate axostylus axostyle used the marking pen mark; To just split two-end-point and two intersection points of end round edge frame and bottom surface horizontal ordinate axostylus axostyle of the top line bar of cone with straight tinsel and use the marking pen mark, and connect fixingly, form the support of just splitting the cone model.Secondly, the mid point of the top line bar of just splitting cone and two intersection points of end round edge frame and ordinate axostylus axostyle are used the marking pen mark, and fixing with the tinsel connection, form the sectional side frame on the coordinate plane.Then; The point that the left side of a bit of distance is arranged at the mid point of just splitting chosen distance top line bar on the top line bar of cone; Simultaneously on the horizontal ordinate axostylus axostyle of bottom surface, confirm also to have the point of the homonymy of this distance with bottom surface horizontal ordinate axostylus axostyle mid point, cross this point do be parallel to the ordinate axostylus axostyle straight line just and end round edge frame meet at 2 points, use the marking pen mark with these 4; And connect fixingly in twos with straight tinsel, form cross section boundary frame area and the side frame be parallel to coordinate plane.At last, all tinsels that are intersected in the some place that has mark are cut off, tinsel is connected with the bilateral gum sleeve with the four-way gum sleeve again, form the removable cone of just splitting.When the tinsel on right side that respectively connects in the gum sleeve on a certain cross section is extracted from gum sleeve, then cross section that is made up of sectional side frame and ordinate axostylus axostyle on the coordinate plane or the cross section that is made up of boundary frame area and side frame that is parallel to coordinate plane just can directly be seen.
The beneficial effect of the utility model patent is, not only can demonstrate out the shape of just splitting cone, and can demonstrate out cross section and the cross section that is parallel to coordinate plane on the coordinate plane intuitively through disengaging section model neatly.
Description of drawings
Accompanying drawing is for just splitting the device synoptic diagram of cone teaching mode.
1. end round edge frames, 2. bottom surface horizontal ordinate axostylus axostyle, 3. bottom surface ordinate axostylus axostyle among the figure; 4. top line bar, 5. support, 6. the sectional side frame on the coordinate plane; 7. the cross section boundary frame area that is parallel to coordinate plane; 8. the sectional side frame that is parallel to coordinate plane, 9. four-way gum sleeve, 10. bilateral gum sleeve.
Embodiment
At first; Be made into end round edge frame (1) and top line bar (4) and bottom surface horizontal ordinate axostylus axostyle (2) and the ordinate axostylus axostyle (3) of just splitting cone with tinsel; And the horizontal ordinate axostylus axostyle (2) of bottom surface and the intersection point of ordinate axostylus axostyle (3) used the marking pen mark; To just split the two-end-point and the end round edge frame (1) of the top line bar (4) of cone with straight tinsel and use the marking pen mark, and connection is fixing, forms the support (5) of just splitting the cone model with two intersection points of bottom surface horizontal ordinate axostylus axostyle (2).Secondly, the mid point and the end round edge frame (1) of the top line bar (4) of just splitting cone are used the marking pen mark with two intersection points of ordinate axostylus axostyle (3), and fixing with the tinsel connection, form the sectional side frame (6) on the coordinate plane.Then; Mid point on the last chosen distance of the top line bar (4) of just splitting cone top has the point in the left side of a bit of distance; Simultaneously horizontal ordinate axostylus axostyle (2) is gone up the point of confirming also to have with bottom surface horizontal ordinate axostylus axostyle (2) mid point the homonymy of this distance in the bottom surface, cross this point do be parallel to ordinate axostylus axostyle (3) straight line just and end round edge frame (1) meet at 2 points, use the marking pen mark with these 4; And connect fixingly in twos with straight tinsel, form cross section boundary frame area (7) and the side frame (8) be parallel to coordinate plane.At last, all tinsels that are intersected in the some place that has mark are cut off, used four-way gum sleeve (9) tinsel to be connected again, form the removable cone of just splitting with bilateral gum sleeve (10).
Claims (1)
1. just splitting the cone teaching mode for one kind; It is characterized in that: be made into end round edge frame and top line bar and bottom surface horizontal ordinate axostylus axostyle and the ordinate axostylus axostyle of just splitting cone with tinsel; And the horizontal ordinate axostylus axostyle of bottom surface and the intersection point of ordinate axostylus axostyle used the marking pen mark; To just split two-end-point and two intersection points of end round edge frame and bottom surface horizontal ordinate axostylus axostyle of the top line bar of cone with straight tinsel and use the marking pen mark, and connect fixingly, form the support of just splitting the cone model; The mid point of the top line bar of just splitting cone and two intersection points of end round edge frame and ordinate axostylus axostyle are used the marking pen mark, and fixing with the tinsel connection, form the sectional side frame on the coordinate plane; The point that the left side of a bit of distance is arranged at the mid point of just splitting chosen distance top line bar on the top line bar of cone; On the horizontal ordinate axostylus axostyle of bottom surface, confirm also to have the point of the homonymy of this distance simultaneously with bottom surface horizontal ordinate axostylus axostyle mid point; Cross this point do be parallel to the ordinate axostylus axostyle straight line just and end round edge frame meet at 2 points; Use the marking pen mark with these 4, and connect fixingly with straight tinsel in twos, form the cross section boundary frame area and the side frame that are parallel to coordinate plane; All tinsels that are intersected in the some place that has mark are cut off, tinsel is connected with the bilateral gum sleeve with the four-way gum sleeve again, form the removable cone of just splitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204797946U CN202383895U (en) | 2011-11-28 | 2011-11-28 | Regular cone teaching model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204797946U CN202383895U (en) | 2011-11-28 | 2011-11-28 | Regular cone teaching model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383895U true CN202383895U (en) | 2012-08-15 |
Family
ID=46632382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204797946U Expired - Fee Related CN202383895U (en) | 2011-11-28 | 2011-11-28 | Regular cone teaching model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485038A (en) * | 2014-12-12 | 2015-04-01 | 齐齐哈尔大学 | Dynamic regular cone section demonstration instrument |
-
2011
- 2011-11-28 CN CN2011204797946U patent/CN202383895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485038A (en) * | 2014-12-12 | 2015-04-01 | 齐齐哈尔大学 | Dynamic regular cone section demonstration instrument |
| CN104485038B (en) * | 2014-12-12 | 2017-04-19 | 齐齐哈尔大学 | Dynamic regular cone section demonstration instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202383895U (en) | Regular cone teaching model | |
| CN204791675U (en) | How much teaching aids that mechanical drawing used | |
| CN202976597U (en) | Teaching tool for solid geometry | |
| CN202383896U (en) | Teaching model of curved-top cylinder | |
| CN204946430U (en) | A kind of Multifunctional mathematics teaching plate | |
| CN204375306U (en) | A kind of bioconversion medium DNA double helical structure model | |
| CN202337135U (en) | Multi-purpose triangular plate | |
| CN205334823U (en) | Mathematic model show shelf of imparting knowledge to students | |
| CN202965688U (en) | Mathematics teaching ruler device | |
| CN205068937U (en) | Physical teaching student demonstrates appearance with pressure | |
| CN202656722U (en) | Set square capable of being folded into regular triangular pyramid | |
| CN202275539U (en) | Mathematical education demonstrator | |
| CN203126283U (en) | Teaching parallel ruler | |
| CN204051141U (en) | Use for laboratory filter | |
| CN202413122U (en) | Folding ruler | |
| CN202534223U (en) | Multifunctional demonstration ruler | |
| CN202213388U (en) | Mathematics teaching aid | |
| CN201965808U (en) | Multifunctional sphere model | |
| CN202480660U (en) | Mathematics teaching board | |
| CN202463346U (en) | Drawing board for mathematical education in college | |
| CN204045077U (en) | A kind of flexible reassembling type teaching aid for classroom on-the-spot demonstration | |
| CN203351083U (en) | Mathematical teaching aid | |
| CN204117476U (en) | A kind of Multifunctional planar linkage assembly demonstration teaching aid | |
| CN205033804U (en) | Mathematics protractor | |
| CN202389052U (en) | Four-line three-grid drawing aid for English teaching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jing Inventor after: Lu Xuejuan Inventor after: Ma Zhanchun Inventor before: Zhang Jing Inventor before: Lu Xuejuan Inventor before: Ma Zhanchun |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20121128 |