阅读说明：本技术 一种算术规则演示工具 (Arithmetic rule demonstration tool ) 是由 王策玉 于 2020-06-28 设计创作，主要内容包括：本发明为一种算术运算规则演示工具,其结构包括基盘、演示条、演示物三部分组成,三部分组成可拆卸；基盘最多可规则排布10个演示条；每个演示条有10个孔洞,最多可容纳10个演示物。演示条最多容纳10个演示物的设计,用于演示十进制规则；基盘和演示条可分离,可演示运算中十位数的加减；演示条和演示物可分离,可演示运算中个位数的加减。本发明基于儿童认知水平,以十进制概念和规律为基础,培养儿童识数和运算能力,更直观地帮助儿童树立正确的数量和算术概念,在动手、总结规律的过程中可培养儿童的探索精神。(The invention relates to an arithmetic operation rule demonstration tool, which structurally comprises a base plate, a demonstration bar and a demonstration object, wherein the three parts are detachable; the base plate can be regularly provided with 10 demonstration bars at most; each demonstration bar has 10 holes and can hold 10 demonstrations at most. The demonstration bar contains at most 10 designs of demonstrations for demonstrating decimal rules; the base plate and the demonstration bar can be separated, and addition and subtraction of tens digits in operation can be demonstrated; the demonstration bar and the demonstration object can be separated, and the addition and subtraction of single digits in operation can be demonstrated. The invention is based on the cognitive level of children, takes decimal concepts and rules as the basis, cultivates the number recognition and operation abilities of the children, more intuitively helps the children to establish correct number and arithmetic concepts, and can cultivate the exploration spirit of the children in the process of starting up and summarizing the rules.)

1. An arithmetic operation rule demonstration tool, characterized by: the demonstration device comprises a base plate, a demonstration strip and a demonstration object, wherein the base plate is detachably connected with the demonstration strip and the demonstration strip is detachably connected with the demonstration object; the base plate is regularly provided with 10 demonstration bars at most; each demonstration bar is regularly provided with 10 demonstrations at most.

2. The arithmetic operation rule presentation tool of claim 1, wherein: the shape of the demonstration object is a sphere, a cube, a cuboid or an ellipsoid.

3. The arithmetic operation rule presentation tool of claim 2, wherein: the base plate is of a square frame structure, ten groups of grooves are formed in a group of frames corresponding to the base plate respectively, clamping heads matched with the grooves of the base plate are arranged at two ends of the demonstration strip, and the demonstration strip clamping heads are connected with the grooves of the base plate.

4. The arithmetic operation rule presentation tool of claim 3, wherein: the dop at demonstration strip both ends is stretched out in the basal disc recess.

5. The arithmetic operation rule presentation tool of claim 4, wherein: ten holes are uniformly formed in the demonstration strip, the demonstration objects are placed in the holes of the demonstration strip, and the size of each demonstration object is larger than that of each hole of the demonstration strip.

6. The arithmetic operation rule presentation tool of claim 4, wherein: the demonstration strip is spliced with the demonstration object through the convex-concave connecting structure.

7. The arithmetic operation rule presentation tool of claim 4, wherein: the demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.

8. The arithmetic operation rule presentation tool of claim 2, wherein: the base plate is a cuboid base, ten groups of grooves are formed in the upper surface of the base, and clamping heads are arranged at two ends of the demonstration strip and are matched with the insertion grooves of the base; the demonstration strip is inserted into the base through the groove, the demonstration object is of a hollow structure, the hollow section of the demonstration object is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.

9. The arithmetic operation rule presentation tool of claim 2, wherein: the base plate is a vertical base with a frame structure, and ten groups of inserting grooves are uniformly formed in the lower surface of the upper frame of the base plate; two ends of the demonstration strip are provided with clamping heads which are matched with the inserting grooves of the vertical base, and the clamping heads of the demonstration strip are vertically inserted into the inserting grooves of the vertical base; the demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.

Technical Field

The invention relates to the technical field of children education tools, in particular to an arithmetic rule demonstration tool.

Background

The four arithmetic operations of number identification and addition, subtraction, multiplication and division occupy important positions in the education of children and children. It is not easy to establish the correct number and concepts of addition, subtraction, multiplication and division, limited by the cognitive level of the young children and children. At present, the teaching children learn numbers, mostly adopt the form of a number finger, a number small rod, an abacus, and the like; teaching children's operation stage, mostly adopt and infuse skills such as "gather ten methods", its main problem lies in:

(1) number bar

Its "decimal" concept is not intuitive. The small stick has no clear decimal concept, and meanwhile, special relations of 1 and 9, 2 and 8, 3 and 7, 4 and 6, 5 and 5 under the decimal system cannot be found visually by the small stick.

(2) Abacus frame

Its "operation rule" is not intuitive. The demonstration bar and the base plate of the abacus frame cannot be separated, and the demonstration of plus or minus of the ten-phase is not visual; the demonstration object and the demonstration bar cannot be separated, and the demonstration phase is not visual when added or subtracted.

(3) Counting finger

The finger has a decimal concept and a relatively intuitive operation rule concept. However, each person only has 10 fingers, and the addition and subtraction within 20 can be calculated by using the fingers and the feet together. When it exceeds 20, the appearance is not intuitive.

(4) Abacus

Abacus is a good computing tool, but is not suitable as a child learning arithmetic concept.

When the tool is used, children are difficult to master the meaning of 'ten' in the decimal system, and are difficult to understand the skill in the subsequent operation; the method is not vivid and is not beneficial to children to master the four concepts, and meanwhile, the method for directly informing the conclusion is not beneficial to the cultivation of the scientific spirit of the children. Therefore, a tool which is convenient for children to understand the decimal concept and can conveniently identify numbers and carry out addition, subtraction, multiplication and division four arithmetic operations is lacked.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide an arithmetic operation rule demonstration tool which is in line with decimal rules, is detachable, can visualize the number recognition and operation rules under abstract decimal and is used for solving the difficulty existing in the number recognition and operation processes of children.

In order to achieve the purpose, the invention adopts the technical scheme that:

an arithmetic operation rule demonstration tool comprises a base plate, a demonstration bar and a demonstration object, wherein the base plate is detachably connected with the demonstration bar, and the demonstration bar is detachably connected with the demonstration object; the base plate is regularly provided with 10 demonstration bars at most; each demonstration bar is regularly provided with 10 demonstrations at most.

The shape of the demonstration object is a sphere, a cube, a cuboid or an ellipsoid.

The base plate is of a square frame structure, ten groups of grooves are formed in a group of frames corresponding to the base plate respectively, clamping heads matched with the grooves of the base plate are arranged at two ends of the demonstration strip, and the demonstration strip clamping heads are connected with the grooves of the base plate.

Dops at two ends of the demonstration strip are longer than the grooves of the base plate, so that the demonstration strip can be conveniently taken and placed.

The demonstration strip is evenly provided with ten holes, the demonstration objects are placed in the holes of the demonstration strip, the size of the demonstration objects is larger than that of the holes of the demonstration strip, and the demonstration objects can be conveniently taken and placed.

The demonstration strip is spliced with the demonstration object through the convex-concave connecting structure.

The demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.

The base plate is provided with a cover, so that the demonstration tool can be conveniently arranged.

The base plate is a cuboid base, ten groups of grooves are formed in the upper surface of the base, and clamping heads are arranged at two ends of the demonstration strip and are matched with the insertion grooves of the base; the demonstration strip is inserted into the base through the groove, the demonstration object is of a hollow structure, the hollow section of the demonstration object is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.

The base plate is a vertical base with a frame structure, and ten groups of inserting grooves are uniformly formed in the lower surface of the upper frame of the base plate; two ends of the demonstration strip are provided with clamping heads which are matched with the inserting grooves of the vertical base, and the clamping heads of the demonstration strip are vertically inserted into the inserting grooves of the vertical base; the demonstration object is of a hollow structure, wherein the hollow section is matched with the cross section of the demonstration strip, and the demonstration strip penetrates into the demonstration object.

The invention has simple structure and exquisite design, and is very in line with the rules of human invention of decimal numbers. By the design of the demonstration bar and the demonstration object, the decimal rule can be intuitively demonstrated; the base plate and the demonstration bar can be separated, and addition and subtraction of tens digits in operation can be demonstrated; the demonstration bar and the demonstration object can be separated, the addition and subtraction of single digits in operation can be demonstrated, and the correct quantity and operation concept can be effectively helped to be established by children.

Drawings

Fig. 1 is a schematic structural diagram of an arithmetic rule demonstration tool.

Fig. 2 is a schematic structural view of embodiment 2.

Fig. 3 is a schematic structural view of embodiment 3.

Fig. 4 is a schematic structural view of embodiment 4.

FIG. 5 is a schematic structural view of example 5.

Fig. 6 is a schematic structural view of embodiment 6.

FIG. 7 is a schematic structural view of example 7.

In the figure: 1. a base plate; 2. a demonstration bar; 3. a demonstration object; 4. a groove; 5. clamping a head; 6. a hole; 7. a protrusion; 8. recessing; 9. the projection of the demonstration object; 10. a dimple hole; 11. a base; 12. concave holes; 13. a vertical base; 14. and (4) inserting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.