CN202042083U

CN202042083U - Octahedron split blocks

Info

Publication number: CN202042083U
Application number: CN2011201617956U
Authority: CN
Inventors: 郭丽华; 赵永建; 曹鹦鹉
Original assignee: Jinhua Polytechnic
Current assignee: Jinhua Polytechnic
Priority date: 2011-05-11
Filing date: 2011-05-11
Publication date: 2011-11-16
Anticipated expiration: 2021-05-11

Abstract

The utility model relates to education and teaching appliances, in particular to octahedron split blocks, which are formed by three kinds of split blocks. A first kind of split blocks are regular triangular pyramid, the side length of the bottom of each regular triangular pyramid is 1 unit, and the height of each regular triangular pyramid is 0.4 unit. A second kind of split blocks are formed by combination of two regular triangular pyramids side to side in contact mode. A third kind of split blocks are formed by combination of three regular triangular pyramids side to side in contact mode. The octahedron split blocks are reasonable in design, enable students to use hands and mind by utilizing learnt knowledge and further understand relation between elements of a polyhedron in learning of the polyhedron, improve memory capability of the students and develop imagery thinking capability of the students.

Description

The regular octahedron piece

Technical field

The utility model relates to the education and instruction apparatus, in teaching during geometric knowledge, the teacher is gained knowledge having a kind of effective instrument to make the student use institute after school, and use one's hands and brains.By the memory capability of training of students, cultivate thinking in images, excite the potential innovation ability of people.

Background technology

Technology content is on the low side in the present like product, they mainly are fit to the following crowd in child and middle school, and knowledge and technology content are higher and to be fit to great majority adults' like products less, particularly modern people's living standard improves, need carry out amusement on higher knowledge aspect, for adapting to this variation, the regular octahedron piece can address this problem, provide a kind of student of making can use the geometric knowledge of learning, the object for appreciation apparatus is pieced together in the space of active again manually brain.

Summary of the invention

As everyone knows, regular polygon has five kinds, and regular octahedron is wherein a kind of, has 8,6 tops, and 12 ribs, its 8 faces all are impartial equilateral triangles.In order to solve the apparatus problem that people use one's hands and brains, the utility model provides a kind of regular octahedron piece according to regular polygon knowledge, piecing together in the object for appreciation to make people use one's hands and brains, the training memory capability is cultivated thinking in images, makes the brain balanced growth of the people left and right sides to improve intellectual level.

The scheme that the utility model adopted is:

The regular octahedron piece is made of three kinds of pieces, and first kind of piece is that the bottom surface length of side is 1 unit and height is the positive triangular pyramid of 0.4 unit; Second kind of piece is by two described positive triangular pyramid sides the side to be combined contiguously and formed; The third piece is by three described positive triangular pyramid sides the side to be combined contiguously and formed.According to regular polygon knowledge, regular octahedron can be made up of eight positive triangular pyramids, the high distance that arrives any outside surface in the regular octahedron body-centered of described positive triangular pyramid.When getting the described positive triangular pyramid bottom surface length of side when being 1 unit, the height of described positive triangular pyramid is Draw the relation between the positive triangular pyramid bottom surface length of side and the height thus, promptly described positive triangular pyramid height is about 0.408 unit.

The beneficial effects of the utility model are:

Described regular octahedron piece is reasonable in design, can make the student utilize institute to gain knowledge and use one's hands and brains, and further understands the relation between the regular polygon key element (face, top, rib) in the study regular polygon knowledge, and assembly is played interesting.

Description of drawings

Further specify below in conjunction with figure of the present utility model:

Fig. 1 is described positive triangular pyramid synoptic diagram;

Fig. 2 is two described positive triangular pyramid sides when the side is combined contiguously, the stretch-out view of two bottom surfaces;

Fig. 3 is three described positive triangular pyramid sides when the side is combined contiguously, the stretch-out view of three bottom surfaces;

Fig. 4 is the regular octahedron synoptic diagram that is combined into.

Among the figure, 1. base, 2. incline, 3. side.

Embodiment

Regular octahedron piece as described in constituting as three kinds of pieces of Fig. 1 to Fig. 3 is that the bottom surface length of side is 1 unit and height is the positive triangular pyramid of 0.4 unit as first kind of piece of Fig. 1, get height and be 0.4 unit and be piece can piece together easily into needs; As second kind of piece of Fig. 2 is by positive triangular pyramid side (3) as described in two side to be combined contiguously and formed; As the third piece of Fig. 3 is by positive triangular pyramid side (3) as described in three side to be combined contiguously and formed; As Fig. 4 is the regular octahedron synoptic diagram that is combined into.

Embodiment one: get Fig. 1 to Fig. 3 piece, get two Fig. 1 pieces again, be combined into a regular octahedron;

Embodiment two: get Fig. 1 to Fig. 3 piece, get Fig. 2 piece again, be combined into a regular octahedron;

Embodiment three: get four Fig. 2 pieces, be combined into a regular octahedron;

Embodiment four: get three Fig. 2 pieces, get two Fig. 1 pieces again, be combined into a regular octahedron;

Embodiment five: get two Fig. 3 pieces, get Fig. 2 piece again, be combined into a regular octahedron;

Embodiment six: get two Fig. 3 pieces, get two Fig. 1 pieces again, be combined into a regular octahedron.

Claims

1. a regular octahedron piece is made of three kinds of pieces, it is characterized in that: first kind of piece is that the bottom surface length of side is 1 unit and height is the positive triangular pyramid of 0.4 unit; Second kind of piece is by two described positive triangular pyramid sides (3) side to be combined contiguously and formed; The third piece is by three described positive triangular pyramid sides (3) side to be combined contiguously and formed.