Mathematics teaching aid for assisting solution of trigonometric function value

Abstract

The utility model provides a trigonometric function value solution assisting mathematics teaching aid, which comprises a positioning block, a hook, a first ruler body, a first adjusting block, a second ruler body, a second adjusting block, an angle ruler and a connecting ruler, and is characterized in that the hook is fixed on the side surface of the positioning block, and the first ruler body and the second ruler body are respectively fixed on the outer side surface of the positioning block; a first adjusting block is installed on the outer side face of the first ruler body in a sliding mode. A second adjusting block is slidably installed on the outer side face of the second ruler body, and an angle ruler and a connecting ruler are installed on the outer side face of the second adjusting block. The connecting ruler is connected with the first adjusting block in a sliding manner; and corresponding scale marks are carved on the first ruler body, the second ruler body, the angle ruler and the connecting ruler. According to the arrangement of the multifunctional teaching aid, when the multifunctional teaching aid is used, right triangles at different angles can be displayed according to needs, then corresponding trigonometric function values can be solved conveniently, circles can be drawn on a blackboard conveniently, and in addition, the multifunctional teaching aid can be folded and stored when not used any more.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the teaching aid technical field, especially relates to a trigonometric function value mathematical teaching aid. BACKGROUND

[0002] Trigonometric functions, as basic elementary functions in mathematics, are self-evidently important. They take angle as independent variable, and are defined by the coordinates of the intersection point of the terminal side of any angle and the unit circle or the ratio of the coordinates, forming a series of functions such as sine function, cosine function, tangent function, etc. These functions not only reveal the deep relationship between angle and side length, but also are indispensable mathematical tools in solving practical problems. In order to help students better understand and master this important concept, teachers have been exploring more efficient and intuitive teaching methods.

[0003] However, in the traditional teaching mode, teachers face many challenges when explaining trigonometric functions. They usually rely on hand-drawing graphics to show the angle position relationship, which not only consumes time and effort, but also is difficult to guarantee the accuracy and consistency of the graphics. Each time the teacher explains different trigonometric function values, the teacher needs to redraw the right triangle and mark the angles and side lengths, which undoubtedly increases the complexity and discontinuity of teaching.

[0004] In addition, when the teacher needs to explain the circular concept related to trigonometric functions, hand-drawn circles are often difficult to meet the standard, and such non-standard circles are easy to distract the students' attention and even mislead their understanding of trigonometric functions, thereby seriously affecting the teaching effect.

[0005] Therefore, it is necessary to invent a trigonometric function value mathematical teaching aid. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a trigonometric function value mathematical teaching aid, which solves the problems mentioned in the background art.

[0007] To solve the above technical problems, the utility model is implemented by the following technical solutions:

[0008] The utility model discloses a trigonometric function value helps to solve mathematical teaching aid, including locating block, hook, first ruler body, first adjusting block, second ruler body, second adjusting block, angle ruler and connecting ruler, the side of locating block is fixed with hook through bolt, and the outside of locating block is fixed with first ruler body and second ruler body respectively through the insertion, wherein first ruler body and second ruler body are perpendicular to each other and set up, the outside of first ruler body is slidably installed with first adjusting block, the outside of second ruler body is slidably installed with second adjusting block, wherein the side of second adjusting block is fixed with angle ruler through bolt, and the front side of second adjusting block is rotatably installed with connecting ruler through support bearing, the connecting ruler is slidably connected with first adjusting block, the first ruler body, second ruler body, angle ruler and connecting ruler all are engraved with corresponding scale line.

[0009] Further, the first adjusting block includes a first sliding block, a first through hole and a limiting column, the first through hole is formed in the first sliding block, and the first ruler body slides through the first through hole, the limiting column is fixed on the side of the first sliding block by bolts, and the limiting column is slidably arranged in the connecting ruler, so that the first adjusting block can slide on the first ruler body.

[0010] Further, the second adjusting block includes a second sliding block and a second through hole, the second through hole is formed in the second sliding block, and the second ruler body slides through the second through hole, the angle ruler is fixed on the side of the second sliding block by bolts, and the connecting ruler is rotatably installed on the front side of the second sliding block by support bearings, so that the second adjusting block can slide on the second ruler body.

[0011] Further, the rear side of the locating block, the first sliding block and the second sliding block are all fixed with magnets by inlaying, so that the device can be fixed to the blackboard by the adsorption force.

[0012] Further, the connecting ruler includes a third ruler body and a sliding groove, one end of the third ruler body is rotatably connected with the second adjusting block by a support bearing, and the sliding groove is formed in the third ruler body, the extension direction of the sliding groove is the same as the extension direction of the third ruler body, the sliding groove is slidably connected with the limiting column, and the width of the sliding groove is the same as the diameter of the limiting column, so that the first adjusting block and the second adjusting block can be connected.

[0013] Further, the connecting ruler further includes a plurality of circular holes, the circular holes are formed in the third ruler body, and the diameter of the circular hole is larger than the diameter of the chalk, so that the device can draw a circle on the blackboard.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When this utility model is used, it can form a right triangle with the first, second, and third rulers. Then, the positions of the first and second adjustment blocks can be adjusted as needed to form a specific angle between the second and third rulers. By reading the scale lines on the first, second, or third ruler, the trigonometric function value to be solved at that angle can be obtained directly. This intuitiveness greatly simplifies the process of solving trigonometric function values, improves teaching efficiency, and allows for the explanation of different types of trigonometric functions (sine, cosine, tangent, and cotangent functions, etc.) at that angle based on the solved trigonometric function values.

[0016] 2. The present invention allows the positioning block, the first adjustment block, and the second adjustment block to be magnetically attached to the blackboard as needed, so as to facilitate the display of the first ruler, the second ruler, and the third ruler forming a right triangle; secondly, the first adjustment block and the connecting ruler can be removed separately, and then chalk can be placed inside the corresponding circular holes, so as to draw a circle on the blackboard with the second adjustment block as the circle.

[0017] 3. The design of this utility model allows it to be folded and stored when not in use. The folded teaching material is compact, easy to carry and store, and does not take up too much space. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the positioning block of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the first adjusting block of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the second adjusting block of this utility model.

[0023] Figure 5 This is a structural schematic diagram of the connecting ruler of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of this utility model after folding.

[0025] In the picture:

[0026] 1-positioning block, 2-hook, 3-first ruler, 4-first adjusting block, 41-first sliding block, 42-first through hole, 43-limiting column, 5-second ruler, 6-second adjusting block, 61-second sliding block, 62-second through hole, 7-angle ruler, 8-connecting ruler, 81-third ruler, 82-sliding groove, 83-round hole, 9-magnet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] In the description of the utility model, it is understood that the terms "upper", "middle", "outer", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0029] Please refer to Figures 1 to 6 As shown in the figure, the utility model is a trigonometric function value solving mathematical teaching aid, including positioning block 1, hook 2, first ruler 3, first adjusting block 4, second ruler 5, second adjusting block 6, angle ruler 7 and connecting ruler 8, the side of positioning block 1 is fixed with hook 2 through bolt, and the outer side of positioning block 1 is fixed with first ruler 3 and second ruler 5 through plug-in respectively, wherein first ruler 3 and second ruler 5 are perpendicular to each other, the outer side of first ruler 3 is slidably installed with first adjusting block 4, the outer side of second ruler 5 is slidably installed with second adjusting block 6, wherein the side of second adjusting block 6 is fixed with angle ruler 7 through bolt, and the front side of second adjusting block 6 is rotatably installed with connecting ruler 8 through support bearing, connecting ruler 8 is slidably connected with first adjusting block 4, and the corresponding scale lines are engraved on first ruler 3, second ruler 5, angle ruler 7 and connecting ruler 8.

[0030] Specifically, first adjusting block 4 includes first sliding block 41, first through hole 42 and limiting column 43, the inside of first sliding block 41 is provided with first through hole 42, wherein the inside of first through hole 42 is slidably penetrated by first ruler 3, the side of first sliding block 41 is fixed with limiting column 43 through bolt, wherein limiting column 43 is slidably arranged in the inside of connecting ruler 8, and when using, first sliding block 41 can slide on first ruler 3.

[0031] Specifically, the second adjusting block 6 comprises a second sliding block 61 and a second through hole 62, the second through hole 62 is arranged in the second sliding block 61, the second sliding block 61 is slidably connected with the second ruler 5, the side of the second sliding block 61 is fixedly connected with the angle ruler 7 through a bolt, and the front side of the second sliding block 61 is rotatably connected with the connecting ruler 8 through a supporting bearing.

[0032] Specifically, the rear side of the positioning block 1, the first sliding block 41 and the second sliding block 61 are fixedly connected with magnets 9 through inlaying, and the positioning block 1, the first sliding block 41 and the second sliding block 61 can be adsorbed to the blackboard through the corresponding magnets 9 in use.

[0033] Specifically, the connecting ruler 8 comprises a third ruler 81 and a sliding groove 82, one end of the third ruler 81 is rotatably connected with the second adjusting block 6 through a supporting bearing, and the third ruler 81 is internally provided with the sliding groove 82, the extending direction of the sliding groove 82 is the same as that of the third ruler 81, the sliding groove 82 is slidably connected with the limiting column 43, and the width of the sliding groove 82 is the same as the diameter of the limiting column 43, the third ruler 81 can rotate on the second adjusting block 6, the limiting column 43 can slide along the sliding groove 82, and the third ruler 81 can be separated from the first adjusting block 4 due to the same width of the sliding groove 82 and the diameter of the limiting column 43.

[0034] Specifically, the connecting ruler 8 further comprises a plurality of round holes 83, and the round holes 83 are arranged on the third ruler 81, the diameter of the round holes 83 is larger than that of the chalk, the third ruler 81 can be separated from the first adjusting block 4, the second adjusting block 6 can be slid off the second ruler 5, the chalk can be arranged in the corresponding round hole 83, and the second adjusting block 6 can be used as a circle to draw a circle on the blackboard.

[0035] Please refer to Figures 1-6 The utility model discloses a trigonometric function value helps to solve mathematical teaching aid, and its working principle is:

[0036] In use, first, according to the trigonometric function to be solved, adjust the angle between the third ruler 81 and the second ruler 5 (for example, 30°, 45°, 60° and 90°, etc.), and adjust the positions of the first adjusting block 4 and the second adjusting block 6 according to the needs, so that the first ruler 3, the second ruler 5 and the third ruler 81 form a right triangle, at this time, the value of the trigonometric function to be solved at the angle can be directly obtained by reading the scale line on the first ruler 3, the second ruler 5 or the third ruler 81, then, the different types of trigonometric functions (sine function, cosine function, tangent function and cotangent function, etc.) at the angle can be explained respectively by the solved trigonometric function value.

[0037] Secondly, the positioning block 1, the first adjusting block 4 and the second adjusting block 6 can be adsorbed to the blackboard by the magnet 9, so as to facilitate the display.

[0038] In addition, the user can also separate the third ruler 81 from the first adjusting block 4, and take off the second adjusting block 6 by sliding on the second ruler 5, then set the chalk inside the corresponding round hole 83, so as to draw a circle on the blackboard with the second adjusting block 6 as a circle, and the user can also take off the second ruler 5 alone and use it as a ruler.

[0039] When not in use, the second ruler 5 can be pulled out of the positioning block 1, then adjust the position of the second adjusting block 6 on the second ruler 5, and make the third ruler 81 parallel to the second ruler 5, then slide the first adjusting block 4 on the first ruler 3, and rotate 180° and slide it back to the first ruler 3, finally, insert the second ruler 5 and the third ruler 81 into the positioning block 1, so that the second ruler 5 and the third ruler 81 are parallel to the first ruler 3, at this time, the magnet 9 on the first adjusting block 4 and the magnet 9 on the second adjusting block 6 will be adsorbed to each other, so that after folding, it is convenient to take and store.

[0040] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A mathematical teaching aid for solving trigonometric function values, comprising a positioning block (1), a hook (2), a first ruler (3), a first adjusting block (4), a second ruler (5), a second adjusting block (6), an angle ruler (7), and a connecting ruler (8), characterized in that: The side of the positioning block (1) is fixed with a hook (2), and the outer side of the positioning block (1) is fixed with a first ruler (3) and a second ruler (5) through insertion respectively, wherein the first ruler (3) and the second ruler (5) are perpendicular to each other; the outer side of the first ruler (3) is slidably installed with a first adjusting block (4); the outer side of the second ruler (5) is slidably installed with a second adjusting block (6), wherein the side of the second adjusting block (6) is fixed with an angle ruler (7), and the front side of the second adjusting block (6) is rotatably installed with a connecting ruler (8); the connecting ruler (8) is slidably connected with the first adjusting block (4); the first ruler (3), the second ruler (5), the angle ruler (7) and the connecting ruler (8) are all engraved with corresponding scale lines; the first adjusting block (4) comprises a first sliding block (41), a first through hole (42) and a limiting column (43), the inside of the first sliding block (41) is provided with the first through hole (42) penetratingly, wherein the inside of the first through hole (42) is slidably penetrated by the first ruler (3); the side of the first sliding block (41) is fixed with the limiting column (43), wherein the limiting column (43) is slidably arranged in the inside of the connecting ruler (8); the second adjusting block (6) comprises a second sliding block (61) and a second through hole (62), the inside of the second sliding block (61) is provided with the second through hole (62) penetratingly, wherein the inside of the second through hole (62) is slidably penetrated by the second ruler (5); the side of the second sliding block (61) is fixed with the angle ruler (7), and the front side of the second sliding block (61) is rotatably installed with the connecting ruler (8); the connecting ruler (8) comprises a third ruler (81) and a sliding groove (82), one end of the third ruler (81) is rotatably connected with the second adjusting block (6), and the inside of the third ruler (81) is provided with the sliding groove (82), wherein the extending direction of the sliding groove (82) is the same as the extending direction of the third ruler (81); the sliding groove (82) is slidably connected with the limiting column (43), and the width of the sliding groove (82) is the same as the diameter of the limiting column (43); the connecting ruler (8) further comprises a round hole (83), a plurality of round holes (83) are provided on the third ruler (81) and penetratingly formed; the diameter of the round hole (83) is larger than the diameter of the chalk.

2. The trigonometric value solving mathematical teaching aid of claim 1, wherein: The rear side of the positioning block (1), the first sliding block (41) and the second sliding block (61) is fixed with a magnet (9).

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