CN203217830U - A probability mold teaching aid for university mathematics teaching - Google Patents

Abstract

The utility model relates to a probability mould teaching aid used for university mathematics teaching and belongs to the technical field of teaching appliances. According to the probability mould teaching aid, a magnet-type chassis (1) is segmented into a plurality of blank grids (3) of which the shapes and sizes are consistent; teaching modules (4) are arranged inside the blank grids (3); the back surface of the magnet-type chassis (1) is provided with suction discs (5) arranged at four corners; one magnet (6) is arranged at two ends inside each teaching module (4) respectively; the front side surface and the back side surface of each teaching module (4) are both provided with an observation window (7); two rotating chassises (10) are respectively arranged at the bottom of each teaching module (4); each rotating chassis (10) is provided with a rotating shaft (9); a roller 1 (8) and a roller 2 (12) are installed on the two rotating shaft (9) respectively; and the upper ends of the roller 1 (8) and the roller 2 (12) are respectively provided with an adjusting knob (11). The probability mould teaching aid used for university mathematics teaching of the utility model is advantageous in time-saving property, convenient use, simple operation, simple structure, and cost-saving property.

Description

A probability mold teaching aid for university mathematics teaching

Technical field:

The utility model relates to the technical field of teaching tools, in particular to a probability mold teaching tool for university mathematics teaching.

Background technique:

Probability cause is a relatively abstract concept. In college mathematics probability theory courses, if it can be explained with the help of probability model teaching aids, it will be easier for students to understand and master. Are the existing probability mold teaching aids more complicated to use? When numbers or colors need to be used, it is necessary to find the corresponding number or color cards. cost.

Utility model content:

The purpose of the utility model is to provide a probability mold teaching aid for university mathematics teaching, which saves time, is convenient to use, simple to operate, simple in structure and low in cost.

In order to solve the existing problems of the background technology, the utility model adopts the following technical scheme: it comprises a magnet type chassis 1, a partition plate 2, a teaching module 4, and a sucker 5, and the magnet type chassis 1 is divided into several parts with a plurality of partition plates 2. A space 3 with the same shape and size, the space 3 is provided with a teaching module 4, the four corners of the back of the magnet chassis 1 are provided with suction cups 5, and it also includes a magnet 6, an observation window 7, a roller 8, and a rotating shaft 9 , rotating chassis 10, adjusting knob 11, roller 2 12, two magnets 6 are respectively arranged on the two ends inside the teaching module 4, the front side and the rear side of the teaching module 4 are all provided with observation windows 7, two rotating chassis 10 Respectively arranged at the bottom of the teaching module 4, rotating shaft 9 is installed on the rotating chassis 10, roller 1 8 and roller 2 12 are installed on the two rotating shafts 9 respectively, and the upper ends of roller 1 8 and roller 2 12 are all set Adjustment knob 11 is arranged.

The outer surface of the roller one 8 is provided with a number layer, and the numbers are 1-10.

The outer surface of the second roller 12 is provided with a color layer.

The utility model sucks the magnet chassis 1 on the wall or the blackboard through the sucker 5, when the teaching mold 4 is needed, and when the numbers are needed, the digital layer on the roller-8 is only needed to be adjusted through the adjusting knob 11, When the color needs to be used, the color layer on the roller 2 12 is adjusted, and the numbers and colors are respectively set on the roller 1 8 and the roller 2 12, which saves searching time, saves cost, is convenient to use, and is simple to operate.

The utility model has the following beneficial effects: time saving, convenient use, simple operation, simple structure and cost saving.

Description of drawings:

Fig. 1 is the structural representation of the utility model,

Figure 2 is a rear view of Figure 1,

Fig. 3 is the structural representation of teaching module 4 in the utility model,

FIG. 4 is a top view of FIG. 3 .

Detailed ways:

Referring to Fig. 1-Fig. 4, this specific embodiment adopts following technical scheme: it comprises magnet type chassis 1, dividing plate 2, teaching module 4, suction cup 5, and magnet type chassis 1 is divided into several shapes with a plurality of dividing plates 2 Consistent with the space 3 of size, the teaching module 4 is arranged in the space 3, and the four corners of the back of the magnet type chassis 1 are all provided with suction cups 5, and it also includes a magnet 6, an observation window 7, a roller 8, a rotating shaft 9, a rotating Chassis 10, adjusting knob 11, roller 2 12, and two magnets 6 are respectively arranged at the two ends inside the teaching module 4, the front side and the rear side of the teaching module 4 are provided with observation windows 7, and the two rotating chassis 10 are respectively arranged At the bottom inside the teaching module 4, a rotating shaft 9 is installed on the rotating chassis 10, and roller one 8 and roller two 12 are installed on the two rotating shafts 9 respectively, and the upper ends of the roller one 8 and roller two 12 are all provided with adjustment Knob 11.

The outer surface of the roller one 8 is provided with a number layer, and the numbers are 1-10.

The outer surface of the second roller 12 is provided with a color layer.

In this specific embodiment, the magnetic chassis 1 is sucked on the wall or blackboard through the suction cup 5. When the teaching mold 4 is needed, and when the numbers are needed, only the digital layer on the roller-8 needs to be adjusted by the adjustment knob 11. , when the color needs to be used, adjust the color layer on the roller two 12, and set the numbers and colors on the roller one 8 and the roller two 12 respectively, which saves searching time, saves cost, is convenient to use, and is simple to operate.

This specific embodiment has the following beneficial effects: time saving, convenient use, simple operation, simple structure and cost saving.

Claims (3)

1. A probability mold teaching aid for university mathematics teaching, which comprises a magnet-type chassis (1), a dividing plate (2), a teaching module (4), a sucker (5), and a plurality of dividing plates for the magnet-type chassis (1) (2) Divide into several spaces (3) of the same shape and size, teaching modules (4) are arranged in the spaces (3), suction cups (5) are arranged at the four corners of the back of the magnet chassis (1), and It is characterized in that it also includes magnet (6), observation window (7), roller one (8), rotating shaft (9), rotating chassis (10), adjustment knob (11), roller two (12), two magnets (6) are respectively arranged at the two ends inside the teaching module (4), the front side and the rear side of the teaching module (4) are all provided with observation windows (7), and two rotating chassis (10) are respectively arranged on the teaching module (4) ) inside the bottom, the rotating chassis (10) is equipped with a rotating shaft (9), roller one (8), roller two (12) are installed on the two rotating shafts (9) respectively, roller one (8), roller Adjustment knobs (11) are provided on the upper ends of the second column (12). 2. a kind of probability mold teaching aid for university mathematics teaching according to claim 1, is characterized in that the outer surface of described roller one (8) is provided with digital layer 3. a kind of university mathematics teaching probability mold teaching aid according to claim 1 is characterized in that the outer surface of described roller two (12) is provided with color layer.

Images