CN102184663B

CN102184663B - Combined teaching aid

Info

Publication number: CN102184663B
Application number: CN 201110131229
Authority: CN
Inventors: 姚永平; 周为保; 张中举; 刘振行
Original assignee: 周为保
Priority date: 2011-05-20
Filing date: 2011-05-20
Publication date: 2013-04-03
Anticipated expiration: 2031-05-20
Also published as: CN102184663A

Abstract

The invention relates to a combined teaching aid, which comprises a block body, wherein a plurality of geometric solids are inserted into the block body, and are one or the combination of at least two of cylinders, cones, barrels and cuboids; the top surface of each geometric solid and the top surface of the block body are on the same horizontal plane; the top surface of the block body is provided with a first dovetail groove; a cover plate is arranged in a way of being matched with the first dovetail groove; and the top surface of the block body and the top surfaces of the geometric solids are shielded. A plurality of geometric solids of different types are very convenient to carry during teaching. A plurality of types of geometric solids needed by teaching are inserted into the block body, can be carried as a whole and can be taken out of the block body for separate use as required. Moreover, the geometric solids can be combined optionally to present vivid and intuitional explanation for students, so that the students are helped to intuitionally learn and grasp relevant properties of the geometric solids. The combined teaching aid is convenient and practical.

Description

Combined teaching aid

Technical field

The present invention relates to a kind of Combined teaching aid.

Background technology

In conventional teaching, in the especially geometric teaching, the space of solid understanding is emphasis, difficult point to the student, often need to cultivate by means of the repeatedly observation to material object for the space imagination of solid.In order to cultivate the student to the space imagination of solid, teacher need to demonstrate the teaching aid of solid at school the time in the classroom.When carrying a plurality of solids and give lessons, carry very inconvenient.

Summary of the invention

Technical matters to be solved by this invention provides a kind of Combined teaching aid easy to carry.

For solving the problems of the technologies described above, Combined teaching aid provided by the invention comprises block, the some solids of plug-in mounting in the block.

For can concise description for the purpose of the problem, below to Combined teaching aid of the present invention all referred to as this apparatus.

After adopting above technical scheme, carry a plurality of, multiple solid and become very convenient.Needed multiple geometrical body is inserted in the block in will imparting knowledge to students, and namely can be used as an integral body and carries, and during use, as required, the solid in the block is taken out, and namely can be used as model and does visual in image explanation for the student, and is convenient and practical.

Therefore, this apparatus have simple in structure, portably use easily advantage.

As the improvement of this device, described block is square, and the block end face has some arrangement chambers to downward-extension, and solid places placing chamber indoor, and described solid is one or more the combination in right cylinder, cone, cylinder, the rectangular parallelepiped.

The common surface level of the end face of described solid and block end face also is provided with the first dovetail groove on the end face of block, cover plate and the adaptive installation of the first dovetail groove hide block end face and solid end face.

Since can with the setting of the cover plate of the adaptive installation of the first dovetail groove so that place the solid of block can arbitrarily not drop, be convenient for carrying.

As the further improvement of this device, the bottom of block has and is lower than the square horizontal counterbore of settling chamber, and plug-in mounting square body in the counterbore, this square body are pegged graft by the base plate that has the second dovetail groove, with the suitable top board of the second dovetail groove and formed.

In order further to improve the service efficiency of this apparatus, can also counterbore be set in the bottom of block, the base plate and the top board that are plugged in the counterbore also can be used as the solid use.

Description of drawings

Fig. 1 is the structural representation that cover plate of the present invention is opened;

Fig. 2 is front view of the present invention;

Fig. 3 is the A-A cut-open view of Fig. 2;

Fig. 4 is the B-B cut-open view of Fig. 3;

Fig. 5 is the C-C cut-open view of Fig. 3;

Fig. 6 is the D-D cut-open view of Fig. 3;

Fig. 7 is the E-E cut-open view of Fig. 2.

Embodiment

The present invention is further detailed explanation below by embodiment and accompanying drawing thereof:

Referring to Fig. 1-Fig. 7:

Combined teaching aid, comprise square block M, square block M end face has four cylindrical arrangement chambers to downward-extension, a back taper is settled chamber, settles respectively the right cylinder 4 of a cylinder 1, a rectangular parallelepiped 2 of suit and a cone 3, the right cylinder 7 that is set with a rectangular parallelepiped 5 and a right cylinder 6, a rectangular parallelepiped 8 of suit and the right cylinder 10 that xsect is foursquare column 9 in four cylindrical arrangement chambers; Back taper is settled and is settled a conical shell 11 in the chamber.The end face of above-mentioned each solid that places and the common surface level of square block M end face also are provided with the first dovetail groove M1 on the end face of square block M, cover plate M2 and the adaptive installation of the first dovetail groove M1 hide square block M end face and above-mentioned each solid end face.

The bottom of square block M has the square horizontal counterbore that is lower than the arrangement chamber that is opened on the top, and plug-in mounting square body in the counterbore, this square body are pegged graft by the base plate M3 that has the second dovetail groove, with the suitable top board M4 of the second dovetail groove and formed.

In teaching process, each solid in the Combined teaching aid of the present invention both can use separately, also each solid arbitrarily can be made up, and helped the student to learn intuitively, grasp the related properties of solid.

Above-described only is preferred implementation of the present invention.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.

Claims

1. Combined teaching aid, the square block that comprises the some solids of inner plug-in mounting, the block end face has some arrangement chambers to downward-extension, solid places placing chamber indoor, described solid is right cylinder, cone, cylinder, the combination of one or more in the rectangular parallelepiped, the common surface level of the end face of solid and block end face, also be provided with the first dovetail groove on the end face of block, cover plate and the adaptive installation of the first dovetail groove, block end face and solid end face are hidden, it is characterized in that: the bottom of block has and is lower than the square horizontal counterbore of settling chamber, plug-in mounting square block body in the counterbore, this square block is by the base plate that has the second dovetail groove, the top board grafting suitable with the second dovetail groove forms.