CN2324588Y - Primary school mathematics six-year third-grade learning tool box - Google Patents

Abstract

The utility model discloses a teaching demonstration apparatus that three grades of system of six primary schools were used, it has a box body, is equipped with 3-6 in the box body and separates the cavity, and the lid internal surface is equipped with the geometry nail board, and its characterized in that box body is equipped with partial shipment demonstration ware, template chi, area ware and area demonstration ware, concatenation stick, count piece, seven skillful boards, rectangle piece, square piece in respectively separating the cavity. The utility model discloses the variety is complete, of high quality, with the whole contents of teaching material organic cooperation one by one, can improve the teaching literacy comprehensively.

Description

Primary school mathematics six-year third-grade learning tool box

The utility model relates to a primary school mathematics education demonstration tool, in particular to a teaching demonstration tool for the third grade of a six-year primary school.

At present, in the mathematics teaching of the third grade of the six-year primary school, in order to help children understand, some learning tools such as counting sticks, triangles and circular pieces are usually used. Doing it yourself will increase the burden on parents, and the types of making are also extremely limited due to conditions, and the quality is not easy to guarantee.

The purpose of this utility model is exactly in order to solve the above-mentioned problems, and provides a kind of complete in variety, good in quality, and the school kit box for the third grade of the elementary school mathematics six-year system that cooperates organically with all the contents of the teaching materials.

The technical solution of the utility model:

A teaching tool box for the third grade of the six-year elementary school mathematics system, which has a box body, 3-6 partition cavities are arranged in the box body, geometric nail plates are arranged on the inner surface of the box cover, and it is characterized in that each partition cavity of the box body contains There are fraction demonstrators, template rulers, area gauges and area demonstrators, splicing sticks, counting sticks, counting pieces, jigsaw puzzles, rectangular pieces, and square pieces.

The utility model is based on the nine-year compulsory teaching syllabus, closely cooperates with the operation items in the teaching materials, has a complete variety of learning tools, good quality, and fully adapts to the physiological and psychological characteristics of children. The utility model has the advantages of simple structure, low cost, and long service life. Under the guidance of teachers, children form intuitive operation structures through operations such as observation, pendulum, and displacement of each component of the utility model. Use your brain and mouth to understand concepts happily, analyze quantitative relationships, form a clear cognitive structure and preliminary spatial concepts in the specific images you have personally created and experienced, and improve your teaching quality in an all-round way.

Fig. 1 is a box schematic diagram of the utility model;

Figures 2 and 3 are the front and back views of the base plate A in the score demonstrator;

Figures 4 and 5 are the front and back views of the bottom plate of B;

Fig. 6 is a schematic diagram of the surface of each transparent sliding block in the score demonstrator;

Fig. 7 is a side view of each sliding block in Fig. 6;

Fig. 8 is a template ruler schematic diagram;

Fig. 9 is a schematic diagram of an area meter;

Fig. 10 is a schematic diagram of a two-area demonstrator;

Figure 11 is a front and side schematic view of a short splicing rod;

Fig. 12 is the front and side schematic diagram of long splicing rod;

Figure 13 is a front and side schematic view of a pair of splicing rods with central bosses and through holes;

Figure 14 is a schematic diagram of a counting rod;

Fig. 15 is a schematic diagram of counting sheet;

Fig. 16 is a schematic diagram of a jigsaw puzzle;

Fig. 17 is a schematic diagram of a rectangular sheet;

Figure 18 is a schematic diagram of a square sheet;

As shown in Figure 1, 3-6 separate cavities can be provided in the box body 1 of the present utility model, the box body 1 is connected with a box cover 2, and the inner surface of the box cover 2 is provided with a geometric nail plate to help students grasp the characteristics of geometric figures , Each compartment of the box body 1 is used to place various school tools.

The score demonstrator of the present utility model is shown in Fig. 2-7, and it is made up of base plate 3 and transparent sliding block 4, and base plate 3 front and back are all marked with geometric figure, and transparent sliding block 4 has grooves on the back of upper end and lower end 5, the width of the groove 5 is matched with the thickness of the bottom plate 3, so that the sliding block 4 can slide on the bottom plate 3, and the surface of the sliding block 4 is also printed on the surface corresponding to the geometric figure on the bottom plate 3. Several geometric figures. The middle bottom plate 3 of the present utility model is A, B two, and the front of A bottom plate 3 is marked with the rectangle of bisecting and trisecting, and the sliding block 4 that matches with it has 9 pieces, namely the label in Fig. 6 is 1-9 slider. Wherein No. 1 and No. 2 sliding blocks 4 are respectively marked with bisecting circles and trisecting circles, and No. 3-8 sliding blocks 4 are respectively marked with three-five equally divided rectangles, wherein No. 6-8 sliding blocks 4 are divided into five equal parts. Different amounts of shading are marked in the rectangle. The front side of the B base plate 3 is marked with two quartered circles, and its reverse side is marked with two sextant circles, where five-sixths of a sextant circle has a shadow, and the supporting slide block 4 has 3 pieces, namely the slide block of label number 10-12 among Fig. 6. Their faces are marked with circles that divide into quarters but are shaded differently. Cooperate with the circular rectangle on the front of A base plate 3 with the slide block 4 of label 1-8, can make the student understand the meaning of fraction, intuitively recognize what fraction. The slide block 4 of label 9 cooperates with the two rectangles on the reverse side of A base plate 3, which can help students compare the sizes of fractions with different denominators with the same numerator. The sliding block 4 marked 10 and 11 cooperates circularly with the front of base plate B 3, which can help students compare the size of fractions with the same denominator. The sliding block 4 marked with 12 cooperates circularly with the reverse side of base plate B 3, which can help students learn the fractions with the same denominator. Addition and Subtraction.

The template chi 6 of Fig. 8 has a piece, and its surface has the through hole of geometric shape, and it can make the student understand unit of measurement, and directly outlines geometric figure.

As shown in Fig. 9, 10, area device 7 has 1, and it is the sheet that is printed with 10 * 10 (centimeter) grid, and its reverse side can be printed with the annual calendar of common year and leap year, and area demonstrator 8 is made of a square of 1 centimeter. It is composed of a piece and a long piece of 1×5 (cm), which can help students establish the concept of area unit, recognize commonly used area units, and derive the formulas for calculating the area of rectangles and squares.

Two kinds of flat straight rods of splicing rod 9 minutes 5 centimeters short splicing rods (Fig. 11) and 7 centimeters of long splicing rods (Fig. 12), they have many, and one end of each straight rod is provided with boss 10, and the other end is provided with The through holes 11 where the protruding posts 10 coincide, adopt four splicing rods 9 of the same length or different lengths, and use the protruding posts 10 on them to match the through holes 11 of an adjacent splicing rod 9 to form a square , rectangles, and parallelograms. The center of any two splicing rods 9 can be respectively provided with bosses 12 and matching through holes 13 (as shown in FIG. 13 ). Such a pair of splicing rods 9 can demonstrate verticality and parallelism.

There are 12 counting sticks 14 in Figure 14, and 6 counting sheets 15 in Figure 15, which are used to help students understand the meaning of multiplying and dividing two-digit numbers by one digit, and grasp the oral arithmetic of multiplying and dividing two-digit numbers by one digit , Pen calculation method.

The jigsaw puzzle of Fig. 16 has seven pieces, wherein there are two large triangular boards 16, two small triangular boards 17, one middle triangular board 18, one square board 19 and one parallelogram board 20, which are used to enrich students' after-school activities. Cultivate students' imagination and creative thinking ability, and help learn to combine graphics.

The rectangular sheet 21 of Fig. 17 and the square sheet 22 of Fig. 18 each have one sheet, which are used to help students consolidate their understanding of the characteristics of rectangles and squares.

Claims (2)

1, three grades teaching aid box of a kind of primary school mathematics six-year system, it has a box body, be provided with 3-6 partitioned cavity in the box body, the lid inside surface is provided with nail-plate how much, in each partitioned cavity of box body the mark demonstration device is housed, Pattern plate ruler, area device and area demonstration device, the splicing rod, the counting rod, count slice, seven-piece puzzle, rectangular pieces, square sheets, it is characterized in that described mark demonstration device is made up of base plate and transparent sliding shoe, the base plate pros and cons all indicates geometric figure, transparent sliding shoe is last, the all fluted block of soffit, the width of its groove matches with the thickness of base plate, make sliding shoe to slide on base plate, the sliding shoe surface also is printed on geometric figures corresponding with geometric figure on the base plate and that expression is several in a measure; Described Pattern plate ruler surface has the through hole of geometric configuration; Described area device for be printed on 10 * 10 (centimetre) thin slice of grid, correspondingly the area demonstration device by the square sheet and 1 * 5 of 1 centimeter square (centimetre) lengthy motion picture constitute; Described splicing rod is made up of many flat straight-bars different in size, and an end of each straight-bar is provided with projection, and the other end has the through hole that matches with projection.

2,, it is characterized in that in the splicing rod through hole that center that can two flat straight-bars in office is respectively equipped with projection and matches by three grades teaching aid box of the described primary school mathematics six-year system of claim 1.

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