CN209248855U - A kind of mathematical function four-quadrant demonstration teaching aid plate - Google Patents
A kind of mathematical function four-quadrant demonstration teaching aid plate Download PDFInfo
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- CN209248855U CN209248855U CN201820237969.4U CN201820237969U CN209248855U CN 209248855 U CN209248855 U CN 209248855U CN 201820237969 U CN201820237969 U CN 201820237969U CN 209248855 U CN209248855 U CN 209248855U
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Abstract
The utility model discloses a kind of mathematical function four-quadrant demonstration teaching aid plates, including demonstration board, the inner via hole of strip is provided on demonstration board along the X-axis of four-quadrant and Y-axis, the graduated scale of different meter full scales is plugged in inner via hole, each rounded coordinate point on demonstration board according to graduated scale has installed pin hole, and pin hole is equipped with label bolt, is provided with elastica between every two label bolt, the bottom hole of pin hole is equipped with pin hole, is inserted with label needle in pin hole.Compared with prior art, a kind of mathematical function of the utility model four-quadrant demonstration teaching aid plate, analog goes out any functional image, and the condition for showing various functions of image on demonstration board, it helps student to better understand and grasp its condition etc., and then improves learning efficiency and learning interest.
Description
Technical field
The utility model relates to a kind of mathematical function four-quadrant demonstration teaching aid plates, belong to teaching aid technical field.
Background technique
Teacher is in the image and property for saying power function and exponential function, logarithmic function, trigonometric function and antitrigonometric function at present
When the knowledge such as matter, to enable student preferably to grasp the image and property of these functions, teacher is passed through by blackboard
List, described point, line first draw image, then summary and induction its property.It is done so that time-consuming more, efficiency of teaching is low, hand of imparting knowledge to students
Duan Danyi is easily reduced the enthusiasm of student's study.And the concavity and convexity of function, extreme value are being discussed, in the most teaching process that is worth,
It is imparted knowledge to students using teaching aid a kind of good method of also can yet be regarded as.Especially in the area that teaching facilities fall behind, taught using teaching aid
Will bring bigger convenience.
Such as a kind of higher mathematics function demonstration teaching aid of Patent No. 201620014361.6, including fixed frame, right angle
Reference axis, fixed jack fix inserting column, fixing chuck plate, jack, inserting column, placing groove, are fixedly connected with right angle inside fixed frame
Reference axis is equipped with fixed jack on the fixed frame, if being fitted with inside the fixed jack at top end surface rearward edges
Dry is fixed inserting column, and top end surface upper edge is fixedly connected with fixing chuck plate before each fixed inserting column, each described solid
Top end surface vertical setting of types is evenly distributed equipped with several jacks before determining inserting column, and jack inside fixation is fitted with inserting column, described solid
Determine to be equipped with placing groove under lower portion at top end surface rearward edges, teacher can demonstrate out right angle without rectangular axes of painting
Reference axis, and workload of the teacher when giving lessons can be reduced；But the utility model can not once show multiple groups letter
Number relationship compares teaching, and the function lines relationship in each quadrant can not be expressed simultaneously, and teaching efficiency is limited.
Utility model content
The utility model technical issues that need to address are in view of the above shortcomings of the prior art, and to provide a kind of mathematics letter
Number four-quadrant demonstration teaching aid plate.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of mathematical function four-quadrant demonstration teaching aid plate, including demonstration board, on the demonstration board along the X-axis of four-quadrant and
Y-axis is provided with the inner via hole of strip, is plugged with the graduated scale of different meter full scales in inner via hole, according to scale on the demonstration board
Each rounded coordinate point of ruler has installed pin hole, and label bolt is equipped in the pin hole, is arranged between every two label bolt
Flexible line, the bottom hole of the pin hole are equipped with pin hole, are inserted with label needle in pin hole.
Scheme as a further preference, the label bolt includes socket and pin shaft, and pin shaft is inserted in pin hole, bolt
The counterbore for other label bolt insertions is offered on seat.
Scheme as a further preference, the elastica have color.
Scheme as a further preference, the label needle part are inserted in pin hole, and the end outside pin hole is provided with
Needle cap, needle cap have color.
Scheme as a further preference, the label bolt are provided with formula mark plate, and the formula mark plate includes
Directional arrow and mark plate, the directional arrow are directed toward on end the fixed pin with insertion pin hole, the other end of directional arrow
It is connected with each other with mark plate.
The back side of scheme as a further preference, the mark plate has Velcro hook side, directional arrow and mark plate
The part of connection has Velcro hook side hair side.
Compared with prior art, a kind of mathematical function of the utility model four-quadrant demonstration teaching aid plate, on demonstration board,
Analog goes out multiple groups functional relation and compares teaching, and analog goes out any functional image, and image show it is various
The condition of function helps student to better understand and grasp its condition etc., and then improves learning efficiency and learning interest.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of demonstration board；
Fig. 2 is the side view for marking bolt；
Fig. 3 is the attachment structure schematic diagram of pair of marks bolt；
Fig. 4 is the attachment structure schematic diagram for marking needle and pin hole；
Fig. 5 is the structural schematic diagram of formula mark plate；
Wherein, 1- demonstration board, 2- inner via hole, 3- pin hole, 4- label bolt, 41- socket, 42- pin shaft, 5- elastica,
6- marks needle, 7- counterbore, 8- needle cap, 91- directional arrow, 92- mark plate, 93- fixed pin.
Specific embodiment
The optimal technical scheme that according to the present invention will be described in detail below with reference to the accompanying drawings.
As shown in Figure 1, a kind of mathematical function of the utility model four-quadrant demonstration teaching aid plate, it is vertical and horizontal on demonstration board 1 in
Heart line is the X-axis and Y-axis of four-quadrant, the inner via hole 2 of strip is provided with along the X-axis and Y-axis of four-quadrant, inner via hole 2 is through demonstration
Plate 1, can be plugged with the graduated scale of different meter full scales in inner via hole 2, according to each integer of graduated scale on the demonstration board 1
Coordinate points position is equipped with pin hole 3, is not only arranged in the integral point of the X-axis of four-quadrant and Y-axis, the extension of integer in each quadrant
Line intersection point is also provided with, and label bolt 4 is equipped in the pin hole 3, is provided with elastica 5, the pin between every two label bolt 4
The bottom hole in hole 3 is equipped with pin hole, and label needle 6 can be inserted in pin hole.
Further, the label bolt 4 includes socket 41 and pin shaft 42, and pin shaft 42 is inserted in pin hole 3, socket 41
On offer for other label bolt 4 be inserted into counterbore 7.
In use, setting substitutes into the interval range of numerical value, the numerical value at the section both ends is calculated according to function formula, first really
The both ends for determining function line segment image are inserted into corresponding pin hole 3 respectively using two label bolts 4, and two label bolt 4(are a pair of)
Between have elastica 5, then according to function formula continue evaluation section in each numerical value, bring into respectively formula calculating
As a result, and using label needle 6 be respectively inserted at the pin hole of corresponding pin hole 3, elastica 5 is finally pulled on into multiple label needles 6 jointly
The curved profile outer rim of formation；If formula formation is line segment, without using marking needle 6；If formula forms the song of S-shaped
Two pairs of label bolt 4 can be used to express for line, i.e., two simple curves is continuously stitched together.
Further, the elastica 5 has color, for distinguishing lines image expressed by different functions formula.
Further, 6 part of label needle is inserted in pin hole, and the end outside pin hole is provided with needle cap 8, the needle
Cap 8 has color, can be used for distinguishing the intersection point of the mutual intersection of different functions lines image.
Further, the label bolt 4 is provided with formula mark plate, and the formula mark plate includes 91 He of directional arrow
Mark plate 92, the directional arrow 91 be directed toward end on have insertion pin hole fixed pin 93, the other end of directional arrow 91 with
Mark plate 92 is connected with each other, and entire formula mark plate is placed near function lines image, and directional arrow 91 can pass through fixed pin
93 are inserted into the pin hole of other pin holes 3 nearby as fixing, and write the function formula exactly in mark plate 92.
Further, the back side of the mark plate 92 has Velcro hook side, and directional arrow 91 is connect with mark plate 92
Part has Velcro hook side hair side, and behind the guide direction convenient for adjusting directional arrow 91, mark plate 92 can also be according to any
Other will not be interfered on entire demonstration board 1 with the tie point of directional arrow 91 and relative position, guarantee mark plate 92 by changing
The placement of function line segment image, puts mark plate 92 in place.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of mathematical function four-quadrant demonstration teaching aid plate, it is characterised in that: including demonstration board (1), on the demonstration board (1)
It is provided with the inner via hole (2) of strip along the X-axis and Y-axis of four-quadrant, the scale of different meter full scales is plugged in inner via hole (2)
Ruler has been installed pin hole (3) according to each rounded coordinate point of graduated scale on the demonstration board (1), is equipped in the pin hole (3)
It marks bolt (4), is provided with elastica (5) between every two label bolt (4), the bottom hole of the pin hole (3) is equipped with pin hole, needle
Label needle (6) is inserted in hole.
2. a kind of mathematical function according to claim 1 four-quadrant demonstration teaching aid plate, it is characterised in that: the label is inserted
Selling (4) includes socket (41) and pin shaft (42), and pin shaft (42) is inserted in pin hole (3), and socket offers on (41) for other
Mark the counterbore (7) of bolt (4) insertion.
3. a kind of mathematical function according to claim 2 four-quadrant demonstration teaching aid plate, it is characterised in that: the elastica
(5) there is color.
4. a kind of mathematical function according to claim 2 four-quadrant demonstration teaching aid plate, it is characterised in that: the label needle
(6) it is partially inserted in pin hole, the end outside pin hole is provided with needle cap (8), and needle cap (8) has color.
5. a kind of mathematical function according to claim 2 four-quadrant demonstration teaching aid plate, it is characterised in that: the label is inserted
Pin (4) is provided with formula mark plate, and the formula mark plate includes directional arrow (91) and mark plate (92), the directional arrow
(91) be directed toward has the fixed pin (93) for being inserted into pin hole on end, the other end and the mark plate (92) of directional arrow (91) mutually interconnect
It connects.
6. a kind of mathematical function according to claim 5 four-quadrant demonstration teaching aid plate, it is characterised in that: the mark plate
(92) the back side has Velcro hook side, and the part that directional arrow (91) is connect with mark plate (92) has Velcro hook side hair
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820237969.4U CN209248855U (en) | 2018-02-10 | 2018-02-10 | A kind of mathematical function four-quadrant demonstration teaching aid plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820237969.4U CN209248855U (en) | 2018-02-10 | 2018-02-10 | A kind of mathematical function four-quadrant demonstration teaching aid plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209248855U true CN209248855U (en) | 2019-08-13 |
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ID=67516434
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820237969.4U Active CN209248855U (en) | 2018-02-10 | 2018-02-10 | A kind of mathematical function four-quadrant demonstration teaching aid plate |
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| CN (1) | CN209248855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634675A (en) * | 2021-01-05 | 2021-04-09 | 青岛黄海学院 | Display device for economics |
| CN113628508A (en) * | 2021-08-18 | 2021-11-09 | 临沂职业学院 | Display device and display method for mathematical integral area |
-
2018
- 2018-02-10 CN CN201820237969.4U patent/CN209248855U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634675A (en) * | 2021-01-05 | 2021-04-09 | 青岛黄海学院 | Display device for economics |
| CN112634675B (en) * | 2021-01-05 | 2022-04-12 | 青岛黄海学院 | Display device for economics |
| CN113628508A (en) * | 2021-08-18 | 2021-11-09 | 临沂职业学院 | Display device and display method for mathematical integral area |
| CN113628508B (en) * | 2021-08-18 | 2023-06-02 | 临沂职业学院 | Display device and display method for mathematical integration area |
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