CN203606994U - Jigsaw puzzle learning tool - Google Patents

Abstract

The utility model relates to an educational toy, especially relates to a jigsaw puzzle learning tool used for learning plane figures. The jigsaw puzzle learning tool comprises eight pieces of jigsaws, which are respectively three right angled triangles, one isosceles right triangle, one obtuse triangle, a semicircle, one large sector, and one small sector. The three right angled triangles has the same size, and the length of the long side of each of the right angled triangles is a cm, and the acute angles of each of the right angled triangles are respectively 60degrees and 30degrees. The length of the isosceles right triangle is a cm. The height of the short side of the obtuse triangle is a cm, and the three interior angles are respectively 120degrees, 45derees, and 15degrees. The radius of the semicircle is a/2cm. The central angle of the large sector is 135degrees, and the radius of the large sector is a/2cm. The central angle of the small sector is 45degrees, and the radius of the small sector is a/2cm. The above mentioned six different figures can be decorated by the red color, the orange color, the yellow color, the green color, the blue color, and the brown color. The jigsaw puzzle learning tool is used for the learning of the plane figures in the elementary school, can be used for splicing all the plane figures learned in the elementary school, can be used to derive the formulas of the plane figures, and can be used for splicing the patterns of various persons, animals, and objects, and therefore by using the jigsaw puzzle learning tool, the intelligence of the students can be developed.

Description

A kind of eight skilful plate learning aids

Technical field

The utility model relates to the skilful plate learning aid of one eight of learning planar graph.

Background technology

Existing on the market use seven-piece puzzle popular two thousand years.It can only show the concrete graphic such as six kinds of simple planar graphs and a little people of splicing, thing, is only applicable to preschool children intelligence development, can not serve as the learning aid of children for learning planar graph.Faculty and Students are being anxious for a learning aid that can contain all planar graphs, to meet the demand of primary school's planar graph teaching.

Summary of the invention

In order to address the above problem, the utility model has designed a kind of eight skilful plate learning aids according to primary school's planar graph requested knowledge, and this learning aid is simple in structure, facilitates the study of pupil to planar graph knowledge.

The technical solution of the utility model is: a kind of eight skilful plate learning aids, comprise eight chart boards, and it is characterized in that, described eight chart boards are respectively:

Identical and the long limit, its right angle of three block sizes is acm, and acute angle is respectively the right-angle triangle of 60 ° and 30 °;

An isosceles right triangle that the right angle length of side is acm;

The height of a minor face is the obtuse triangle that acm and three interior angles are respectively 120 °, 45 ° and 15 °;

A semicircle that radius is a/2cm;

What 135 °, central angle and radius were a/2cm is fan-shaped greatly;

What 45 °, central angle and radius were a/2cm is little fan-shaped.

Further, described eight chart boards can form a sports ground figure.

Further, on eight described chart boards, be printed with color diagram layer.

Compared with prior art, the utlity model has following advantage: (1) this eight skilful plate learning aid is simple and practical, by splicing and combining, capable assembling goes out all planar graphs that primary school is learned, and can be put into oxygon, right-angle triangle, obtuse triangle, isosceles triangle, equilateral triangle, right angled isosceles triangle, general quadrilateral, parallelogram, rhombus, rectangle, square, generally trapezoidal, right-angled trapezium, isosceles trapezoid, circle and the planar graph such as fan-shaped; (2) figure that can go out by amalgamation, understands their definition and the characteristic of title, classification and this figure of each several part.Thereby grasp the relevant knowledge of the various planar graphs of learning; (3) can derive the girth of various planar graphs and the formula of area by the method such as amalgamation, movement of these eight skilful plates, make children have perceptual understanding to its formula.Thereby keep rectangle, square, triangle, parallelogram, the relevant girth of the planar graph such as trapezoidal and the formula of area firmly in mind; (4) utilize this eight skilful plate also can help children to open up thinking, answer the planar graph exercise question of various difficulties; (5) this eight skilful plate can also piece together the figures such as various material objects, personage, animal pattern, cultivates imagination and the thinking ability of children to the interest of jigsaw and exploitation student; (6) this eight skilful plate uses red, orange, yellow, green, blue, brown six kinds of colors to decorate respectively right-angle triangle, isosceles right triangle, obtuse triangle, semicircle, fan-shaped greatly, little fan-shaped six kinds of figures, not only increase the attractive in appearance of eight skilful plates, and be conducive to improve the ability of children's identification colors.

accompanying drawing explanation

Fig. 1 to Fig. 2 is harvesting constitutional diagram of the present utility model;

Fig. 3 to Figure 14 is partial plan shape amalgamation example of the present utility model;

Figure 15 to Figure 21 is part of the present utility model assembled legend in kind;

Figure 22 to Figure 26 is part of the present utility model assembled legend in kind;

In figure: the large fan-shaped F-of A-right-angle triangle B-isosceles right triangle C-obtuse triangle D-semicircle E-is little fan-shaped.

Embodiment

For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the utility model is not limited to this.

A kind of eight skilful plate learning aids, comprise eight chart boards, 8 chart boards that described eight chart boards are cut out by a rectangle, a square and three figures of a circle, and described eight chart boards are respectively:

Identical and the long limit, its right angle of three block sizes is acm, and acute angle is respectively the right-angle triangle of 60 ° and 30 °;

An isosceles right triangle that the right angle length of side is acm;

The height of a minor face is the obtuse triangle that acm and three interior angles are respectively 120 °, 45 ° and 15 °;

A semicircle that radius is a/2cm;

What 135 °, central angle and radius were a/2cm is fan-shaped greatly;

What 45 °, central angle and radius were a/2cm is little fan-shaped.

On above-mentioned eight panels, be also printed with color diagram layer.

Above-mentioned color diagram layer is respectively red, orange, yellow, green, blue and brown six kinds of color diagram layers.

Embodiment mono-:

With reference to figure 1, it is made up of this eight skilful plate learning aid 8 blocks of geometric figure plates that cut out in a rectangle, a square and a circle, and the identical length of this rectangular right angle long limit, the foursquare length of side and diameter of a circle etc., are 6 centimetres.

In 8 blocks of geometric figure plates, having the identical and acute angle of three block sizes is the right-angle triangle A of 60 ° and 30 °, and its long right-angle side is 6 centimetres;

An isosceles right triangle B, its right-angle side is 6 centimetres;

Three interior angle are respectively the obtuse triangle C of 120 °, 45 ° and 15 °, and the height of its minor face is 6 centimetres;

A semicircle D, its diameter is 6 centimetres;

Central angle is the large fan-shaped E of 135 °, and its radius is 3 centimetres;

Central angle is the little fan-shaped F of 45 °, and its radius is 3 centimetres.

With reference to figure 1 and Fig. 2, the shape of a sports ground of this eight skilful plate one-tenth capable of being combined, is bonded on base paper and is received and kept and the timely loss situation of finding.Simultaneously in order to improve the identification capability of children to color, decorate respectively six kinds of figures above by the most frequently used three primary colors (red, yellow, indigo plant) and three secondary colors (orange, green, palm fibre), but also increased the attractive in appearance of eight skilful plates.

With reference to figure 3 to Figure 14, these eight chart boards can piece together various planar graphs, and it has comprised the planar graph of all, has oxygon, right-angle triangle, obtuse triangle, isosceles triangle, equilateral triangle, right angled isosceles triangle, general quadrilateral, parallelogram, rhombus, rectangle, square, generally trapezoidal, right-angled trapezium, isosceles trapezoid, circle, fan-shaped etc.Understand their definition separately by these figures, the title of each several part and classification and characteristic, deepen the understanding to planar graph knowledge.And deduce out triangle, parallelogram, trapezoidal, rectangle, square, circle and fan-shaped girth and area by combination, the movement etc. of eight skilful plates.Therefrom being come to realize, be conducive to keep firmly in mind formula, can also help to solve a problem, is a simple toy of practical study planar graph again.

By combination, the decomposition of eight skilful plates, can open up thinking, help to solve a problem.

With reference to Figure 15 to Figure 21, this eight skilful plate can also piece together material object, personage, animal, pattern etc., and children beat one's brains and start, and carry out composite assembly, can excite the interest of children to these eight skilful plates, are conducive to develop children's intelligence.Development children's creative thinking.

The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.

Claims (1)

1. eight skilful plate learning aids, comprise eight chart boards, it is characterized in that, described eight chart boards are respectively:

Identical and the long limit, its right angle of three block sizes is acm, and acute angle is respectively the right-angle triangle of 60 ° and 30 °;

An isosceles right triangle that the right angle length of side is acm;

The height of a minor face is the obtuse triangle that acm and three interior angles are respectively 120 °, 45 ° and 15 °;

A semicircle that radius is a/2cm;

What 135 °, central angle and radius were a/2cm is fan-shaped greatly;

What 45 °, central angle and radius were a/2cm is little fan-shaped.

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