A kind of Teaching in University probability teaching aid
Technical field
The utility model relates to a kind of probability teaching aid, belongs to the teaching aid technical field.
Background technology
Probability is because being the comparison abstract concept, in big immunologing mathematics theory of probability course, if can make the student be more readily understood and grasp by the explanation of probability teaching aid.And up to now, because being fit to the probability teaching aid that the teacher uses, make the teacher can only be on blackboard with language and cooperate drawn figure to explain, not only the student beyonds one's depth, the teacher explains also very hard.
The utility model content
The purpose of this utility model provides a kind of Teaching in University probability teaching aid, and this probability teaching aid has characteristics eye-catching, that be convenient to operate when demonstration, has made things convenient for student's fast understanding and has grasped this subject of probability.
Realize above-mentioned purpose, the technical scheme that the utility model is taked is:
A kind of Teaching in University probability teaching aid, described probability teaching aid comprises the chassis, the chassis upper surface is divided into a plurality of shapes and side of the same size space with a plurality of separation battens, a plurality of sides space is the matrix form setting, the center that is positioned at each side space on the chassis is provided with threaded hole, the center of numeral board lower surface and an end of screw rod are affixed, the numeral board spins by screw rod and threaded hole and is fixed on the chassis, numeral board surface is provided with fluorescence coating one, two links are fixedly arranged on one lateral surface of chassis, and two links are symmetrical arranged with respect to the center line of described side.
The outstanding outside, chassis of numeral board.
A kind of Teaching in University probability teaching aid, described probability teaching aid comprises the chassis, the chassis upper surface is divided into a plurality of shapes and side of the same size space with a plurality of separation battens, a plurality of sides space is the matrix form setting, the center that is positioned at each side space on the chassis is provided with threaded hole, one end of the center on spherical model surface and screw rod is affixed, spherical model spins by screw rod and threaded hole and is fixed on the chassis, the spherical model surface is provided with fluorescence coating two, two links are fixedly arranged on one lateral surface of chassis, and two links are symmetrical arranged with respect to the center line of described side.
Spherical model is given prominence to the outside, chassis.
The utility model with respect to the beneficial effect of prior art is: 1, digital board of the present utility model and spherical model are convenient to be connected with base or dismantle, and because on digital board surface and the spherical model surface be respectively equipped with fluorescence coating, make the student in last probability class, the teacher utilizes the demonstration of probability teaching aid more directly perceived, more eye-catching, more can attract student's notice, even in environment with dark light, also can conveniently demonstrate and watch, be beneficial to student's fast understanding and grasp this subject of probability.2, one lateral surface fixedly has two links on the chassis, utilizes two links can be easily probability teaching aid of the present utility model to be hung on the wall or on the fixed object, and convenient teaching is convenient to student's demonstration and is watched.
Description of drawings
One-piece construction vertical view when Fig. 1 is the utility model employing spherical model;
Fig. 2 is the one-piece construction vertical view of the utility model when adopting digital board;
Fig. 3 is the vertical view of base plate;
Fig. 4 is the affixed front view of digital board and screw rod;
Fig. 5 is the affixed front view of spherical model and screw rod.
Wherein, 1-chassis; 2-separates batten; The 3-space; The 4-threaded hole; 5-numeral board; The 6-screw rod; The 7-spherical model; 8-fluorescence coating one; 9-fluorescence coating two; The 10-link.
Embodiment
As Fig. 1~shown in Figure 5, a kind of Teaching in University probability teaching aid, described probability teaching aid comprises chassis 1, chassis 1 upper surface is divided into a plurality of shapes and side of the same size space 3 with a plurality of separation battens 2, a plurality of sides space 3 is the matrix form setting, the center that is positioned at each side space 3 on the chassis 1 is provided with threaded hole 4, and the center of digital board 5 lower surfaces and an end of screw rod 6 are affixed, and digital board 5 spins by screw rod 6 and threaded hole 4 and is fixed on the chassis 1; Perhaps an end of the center on spherical model 7 surfaces and screw rod 6 is affixed, and spherical model 7 spins by screw rod 6 and threaded hole 4 and is fixed on the chassis 1; Numeral board 5 surfaces are provided with fluorescence coating 1, and spherical model 7 surfaces are provided with fluorescence coating 29, fixedly have 10, two links 10 of two links to be symmetrical arranged with respect to the center line of described side on 1 one lateral surfaces of chassis; When digital board 5 is fixed on the chassis 1 by screw rod 6, digital board 5 outstanding 1 outsides, chassis; Perhaps when spherical model 7 was fixed on the chassis 1 by screw rod 6, spherical model 7 was given prominence to 1 outsides, chassis.Make the student more can learn this subject of probability intuitively.
Every row of probability teaching aid of the present utility model is provided with 7~10 spaces, and every row are provided with 7~10 spaces.The numeral of numeral board is 1~10.
In last probability class, when needs are used numeral, only need to utilize screw rod 6 and threaded hole 4 to spin on digital board 5 and be fixed on the chassis 1; When needs are represented with spherical model 7, only need to utilize screw rod 6 and threaded hole 4 to spin spherical model 7 and be fixed on the chassis 1.