Auxiliary tools for summing

Abstract

An auxiliary tool for summing, comprising a plurality of identical second mosaic blocks, a plurality of identical third mosaic blocks and a plurality of first mosaic blocks increasing or decreasing according to a predetermined rule, wherein the second mosaic blocks are in a square structure with a side length of a, the third mosaic blocks are in an isosceles right triangle structure with a side length of a and the area of ​​the third mosaic blocks is equal to half the area of ​​the second mosaic blocks, one side length of the first mosaic blocks increases from a to n times of a, the other side length of the first mosaic blocks is a, and one end of the first mosaic blocks has a notch structure with the same shape and size as the third mosaic blocks, so that the first mosaic blocks can form a rectangular structure with side lengths of a and n*a after the third mosaic blocks are spliced ​​to the notch structure, where n is a natural number and a is a number not less than 0.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to an auxiliary tool for summing. Background Art

[0002] There are many varieties of educational toys, such as Chinese character pinyin building blocks, animal chess, electronic remote control cars and ships, etc., which are helpful for the popular science education of children, but there are few educational toys used to assist mathematical operations, especially the existing numerical summation usually needs to be calculated through formulas, which not only cannot assist props in operation, but also are not very interesting. Utility Model Content

[0003] The utility model provides an auxiliary tool for summing, which can not only obtain the sum of multiple values ​​within n by splicing multiple second splicing blocks, multiple third splicing blocks and multiple first splicing blocks, but also can stimulate children's interest in learning and cultivate children's ability to discover rules and solve problems.

[0004] The utility model provides an auxiliary tool for summing, characterized in that it comprises a plurality of identical second splicing blocks, a plurality of identical third splicing blocks and a plurality of first splicing blocks which increase or decrease according to a predetermined rule, the second splicing blocks are in a square structure with a side length of a, the third splicing blocks are in an isosceles right triangle structure with a side length of a and the area of ​​the third splicing blocks is equal to half of the area of ​​the second splicing blocks, one side length of the first splicing blocks increases from a to n times of a in sequence, the other side length of the first splicing blocks is a, and one end of the first splicing blocks has a notch structure with the same shape and size as the third splicing blocks, so that the first splicing blocks can form a rectangular structure with side lengths of a and n*a after the third splicing blocks are spliced ​​to the notch structure, where n is a natural number and a is a number not less than 0;

[0005] Among them, the auxiliary tool also includes a placement plate, which has a placement groove formed in it. Multiple second puzzle blocks, multiple third puzzle blocks and multiple first puzzle blocks are placed in the placement groove and can be used to assist in the summation of natural numbers through different placement methods.

[0006] In the auxiliary tool of one embodiment of the utility model, the placement plate includes a plate body, a first partition and a second partition, the first partition extends along the length direction of the plate body and is movably installed in the placement groove, the second partition extends along the width direction of the plate body and is movably installed in the placement groove, the first partition, the second partition and the other two sides of the placement groove form a summation area for assisting the summation of natural numbers.

[0007] In the auxiliary tool of one embodiment of the utility model, the length of one side of the summation area is na, and the length of the other side of the summation area is (n+1)a, where n is the number to be summed; or, the lengths of two adjacent sides of the summation area are both na, where n is the number to be summed.

[0008] In the auxiliary tool of one embodiment of the utility model, a grid structure is provided in the summing area, and the structure and size of each grid structure are adapted to the structure and size of the second splicing block, so as to assist the second splicing block, the third splicing block and the first splicing block to be placed in the summing area.

[0009] In the auxiliary tool of one embodiment of the utility model, a first adsorption member is arranged in the lattice structure, and second adsorption members are arranged on the second assembling block, the third assembling block and the first assembling block, and the second adsorption member and the first adsorption member are adsorbed on each other.

[0010] In the auxiliary tool of one embodiment of the utility model, one end of the first partition is movably connected to the second partition and can be folded or shortened when the second partition moves toward one side, and the other end of the first partition is movably connected to one side of the disk.

[0011] In the auxiliary tool of one embodiment of the utility model, the disk body is provided with a first movable groove, the first partition plate is inserted into the first movable groove and can move along the guide direction of the first movable groove; and / or,

[0012] The disk body is provided with a second movable groove, and the second partition plate is penetrated in the second movable groove and can move along the guide direction of the second movable groove.

[0013] In the auxiliary tool of one embodiment of the utility model, the disk body is provided with a first limiting portion and a second limiting portion, the first limiting portion is used to limit the position of the first partition in the summing area, and the second limiting portion is used to limit the position of the second partition in the summing area.

[0014] In the auxiliary tool of one embodiment of the present invention, n is equal to 10.

[0015] In the auxiliary tool of one embodiment of the present utility model, a is equal to 1 cm.

[0016] The technical solution provided by the embodiments of the present application may include the following beneficial effects: the present application designs an auxiliary tool for summing, comprising a placement plate, a plurality of identical second puzzle blocks, a plurality of identical third puzzle blocks and a plurality of first puzzle blocks increasing in increments according to a predetermined rule, a placement slot is formed in the placement plate, a plurality of second puzzle blocks, a plurality of third puzzle blocks and a plurality of first puzzle blocks are placed in the placement slot, and can be used to assist in summing natural numbers through different placement methods, not only can the plurality of second puzzle blocks, a plurality of third puzzle blocks and a plurality of first puzzle blocks be combined to obtain the sum of multiple values ​​within n, but also the plurality of second puzzle blocks, a plurality of third puzzle blocks and a plurality of first puzzle blocks can be combined to stimulate children's interest in learning while cultivating children's ability to discover patterns and solve problems.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a structural schematic diagram of an auxiliary tool for summing provided by an embodiment of the present application;

[0020] Figure 2 yes Figure 1 An exploded diagram of the auxiliary tools in the

[0021] Figure 3 yes Figure 1 An exploded schematic diagram of the display plate in FIG.

[0022] Figure 4 yes Figure 1 One of the usage state diagrams of the auxiliary tools in ;

[0023] Figure 5 yes Figure 1 Another usage state diagram of the auxiliary tools in ;

[0024] Figure 6 is another structural schematic diagram of an auxiliary tool provided in an embodiment of the present application;

[0025] Figure 7 yes Figure 6 An exploded diagram of the auxiliary tools in the

[0026] Figure 8 yes Figure 7 Schematic diagram of the exploded display plate in . DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should also be understood that the terms used in this utility model specification are only for describing specific realities. In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] like Figures 1 to 8 As shown, the present application provides an auxiliary tool for summing, including a second splicing block 30, a third splicing block 40 and a first splicing block 20, wherein the second splicing block 30, the third splicing block 40 and the first splicing block 30 are all in plurality. Among them, the structures and sizes of the plurality of second splicing blocks 30 are the same, the structures and sizes of the plurality of third splicing blocks 40 are the same, and the plurality of first splicing blocks 40 are sequentially increased or decreased according to a predetermined rule, such as sequentially increasing the structure of a second splicing block 30 at one end thereof, and so on.

[0031] In this embodiment, the second splicing block 30 is a square structure, each side of which is a; the third splicing block 40 is an isosceles right triangle structure, each side of which is a, and the area of ​​the third splicing block 40 is equal to half the area of ​​the second splicing block 30; one side length of the first splicing block 20 increases from a to n times of a, the other side length of the first splicing block 20 is a, and one end of the first splicing block 20 has a notch structure 20a of the same shape and size as the third splicing block 40, so that the first splicing block 20 can form a rectangular structure with side lengths of a and n*a after the third splicing block 40 is spliced ​​to the notch structure 20a, where n is a natural number and a is a number not less than 0.

[0032] Exemplarily, when a is equal to 1 cm and n is 9, the number of the first splicing blocks 20 can be but is not limited to 9, namely the first sub-splicing block 21, the second sub-splicing block 22, the third sub-splicing block 23, the fourth sub-splicing block 24, the fifth sub-splicing block 25, the sixth sub-splicing block 26, the seventh sub-splicing block 27, the eighth sub-splicing block 28 and the ninth sub-splicing block 29. Among them, the length of the first sub-piece 21 is 1 cm smaller than the length of the second sub-piece 22, and the width of the first sub-piece 21 is equal to the width of the second sub-piece 22; the length of the second sub-piece 22 is 1 cm smaller than the length of the third sub-piece 23, and the width of the second sub-piece 22 is equal to the width of the third sub-piece 23; the length of the third sub-piece 23 is 1 cm smaller than the length of the fourth sub-piece 24, and the width of the third sub-piece 23 is equal to the width of the fourth sub-piece 24; the length of the fourth sub-piece 24 is 1 cm smaller than the length of the fifth sub-piece 25, and the width of the fourth sub-piece 24 is equal to the width of the fifth sub-piece 25; the length of the fifth sub-piece 25 is 1 cm smaller than the length of the sixth sub-piece 26, and the width of the fifth sub-piece 25 is equal to the width of the first sub-piece 26; The widths of the six sub-pieces 26 are equal; the length of the sixth sub-piece 26 is 1 cm smaller than the length of the seventh sub-piece 27, and the width of the sixth sub-piece 26 is equal to the width of the seventh sub-piece 27; the length of the seventh sub-piece 27 is 1 cm smaller than the length of the eighth sub-piece 28, and the width of the seventh sub-piece 27 is equal to the width of the eighth sub-piece 28; the length of the eighth sub-piece 28 is 1 cm smaller than the length of the ninth sub-piece 29, and the width of the eighth sub-piece 28 is equal to the width of the ninth sub-piece 29; the shape and size of the first sub-piece 21 are the same as the shape and size of the third piece 40, both of which are isosceles right triangle structures, and the lengths of the two right angles of the isosceles right triangle structure are both 1 cm; the lengths of the second piece 30 are all 1 cm.

[0033] In an optional embodiment, the auxiliary tool also includes a placement plate 10, in which a placement groove 111 is formed. Multiple second puzzle blocks 30, multiple third puzzle blocks 40 and multiple first puzzle blocks 10 are placed in the placement groove 111, and can be used to assist in the summation of natural numbers through different placement methods.

[0034] For example, Figure 1 As shown, when it is necessary to sum the natural numbers 1 to 9, the length and width of the placement slot 111 are adjusted, that is, the length of the summation area is 9, and the width of the summation area is 9+1=10; the first sub-piece 21, the second sub-piece 22, the third sub-piece 23, the fourth sub-piece 24, the fifth sub-piece 25, the sixth sub-piece 26, the seventh sub-piece 27, the eighth sub-piece 28 and the ninth sub-piece 29 are placed in the summation area in sequence, and then a plurality of third pieces 40 are filled in the notch structures 20a corresponding to the first sub-piece 21, the second sub-piece 22, the third sub-piece 23, the fourth sub-piece 24, the fifth sub-piece 25, the sixth sub-piece 26, the seventh sub-piece 27, the eighth sub-piece 28 and the ninth sub-piece 29, and then the plurality of first pieces 20 are filled in the summation area. It can be seen that the first sub-piece 21, the second sub-piece 22, the third sub-piece 23, the fourth sub-piece 24, the fifth sub-piece 25, the sixth sub-piece 26, the seventh sub-piece 27, the eighth sub-piece 28 and the ninth sub-piece 29 form an isosceles right triangle, and the area of ​​the isosceles right triangle is (9*9) / 2; at the same time, the number of third pieces 40 in the summation area is 9, and the area of ​​9 third pieces 40 is 9*(1*1) / 2, that is, the sum of the natural numbers 1 to 9 is: (9*9) / 2+9*(1*1) / 2=9*(9+1) / 2=45.

[0035] At the same time, the third splicing block 40 can be moved to the accommodating groove outside the 9*9 summing area, the length of the accommodating groove is 9*a, and the width is a. The accommodating groove can form a 9*10 placement groove 111 for the 9*9 summing area, and the accommodating groove can also form two separate placement grooves 111 for the 9*9 summing area, that is, the length and width of one placement groove 111 are 9*9, and the length and width of the other placement groove 111 are 9*1. Since the number of the third splicing blocks 40 is 9, that is, it occupies half of the area of ​​the placement groove 111 with a length and width of 9*1, at this time, the sum of the natural numbers 1 to 9 can also be obtained as: 9*(9+1) / 2=45, (9+1) means that the 9*1 placement groove 111 is located outside the 9*9 summing area, that is, the position of the 9*1 placement groove 111 is 10.

[0036] Or, if Figure 4As shown, when it is necessary to sum the natural numbers 1 to 8, the length and width of the placement slot 111 are adjusted, that is, the length of the summation area is 8, and the width of the summation area is 8+1=9; the first sub-piece 21, the second sub-piece 22, the third sub-piece 23, the fourth sub-piece 24, the fifth sub-piece 25, the sixth sub-piece 26, the seventh sub-piece 27 and the eighth sub-piece 28 are placed in the summation area in sequence, and then a plurality of third pieces 40 are filled in the notch structures 20a corresponding to the first sub-piece 21, the second sub-piece 22, the third sub-piece 23, the fourth sub-piece 24, the fifth sub-piece 25, the sixth sub-piece 26, the seventh sub-piece 27 and the eighth sub-piece 28, and then the plurality of first pieces 20 are filled in the summation area. It can be seen that the first sub-piece 21, the second sub-piece 22, the third sub-piece 23, the fourth sub-piece 24, the fifth sub-piece 25, the sixth sub-piece 26, the seventh sub-piece 27 and the eighth sub-piece 28 form an isosceles right triangle, and the area of ​​the isosceles right triangle is (8*8) / 2; at the same time, the number of third pieces 40 in the summation area is 8, and the area of ​​8 third pieces 40 is 8*(1*1) / 2, that is, the sum of the natural numbers 1 to 8 is: (8*8) / 2+8*(1*1) / 2=8*(8+1) / 2=36.

[0037] At the same time, the third splicing block 40 can be moved to the accommodating groove outside the 8*8 summing area, the length of the accommodating groove is 8*a, and the width is a. The accommodating groove can form an 8*9 placement groove 111 with a summing area of ​​8*8, and the accommodating groove can also form two separate placement grooves 111 with a summing area of ​​8*8, that is, the length and width of one placement groove 111 are 8*8, and the length and width of the other placement groove 111 are 8*1. Since the number of the third splicing blocks 40 is 8, that is, it occupies half of the area of ​​the placement groove 111 with a length and width of 8*1, at this time, the sum of the natural numbers 1 to 8 can be obtained: 8*(8+1) / 2=36, (8+1) means that the 8*1 placement groove 111 is located outside the 8*8 summing area, that is, the position of the 8*1 placement groove 111 is 9.

[0038] Or, if Figure 5As shown, when it is necessary to sum the natural numbers 1 to 4, the length and width of the placement slot 111 are adjusted, that is, the length of the summing area is 4, and the width of the summing area is 4+1=5; the first sub-piece 21, the second sub-piece 22, the third sub-piece 23 and the fourth sub-piece 24 are placed in the summing area in sequence, and then a plurality of third pieces 40 are filled in the notch structures 20a corresponding to the first sub-piece 21, the second sub-piece 22, the third sub-piece 23 and the fourth sub-piece 24, and then a plurality of first pieces 20 are filled in the summing area. It can be seen that the first sub-piece 21, the second sub-piece 22, the third sub-piece 23 and the fourth sub-piece 24 form an isosceles right triangle, and the area of ​​the isosceles right triangle is (4*4) / 2; at the same time, the number of third pieces 40 in the summation area is 4, and the area of ​​4 third pieces 40 is 4*(1*1) / 2, that is, the sum of the natural numbers 1 to 4 is: (4*4) / 2+4*(1*1) / 2=4*(4+1) / 2=10.

[0039] At the same time, the third splicing block 40 can be moved to the accommodating groove outside the 4*4 summing area, the length of the accommodating groove is 4*a, and the width is a. The accommodating groove can form a 4*5 placement groove 111 for the 4*4 summing area, or the accommodating groove can form two separate placement grooves 111 for the 4*4 summing area, that is, the length and width of one placement groove 111 are 4*4, and the length and width of the other placement groove 111 are 8*1. Since the number of the third splicing blocks 40 is 4, that is, it occupies half of the area of ​​the placement groove 111 with a length and width of 4*1, at this time, the sum of the natural numbers 1 to 4 can be obtained as: 4*(4+1) / 2=10, (4+1) means that the 4*1 placement groove 111 is located outside the 4*4 placement groove 111, that is, the position of the 4*1 placement groove 111 is 5.

[0040] Therefore, the auxiliary tool of this application can assist in summing natural numbers, that is, After adopting the above scheme, not only can the sum of multiple values ​​within n be obtained by splicing multiple second splicing blocks, multiple third splicing blocks and multiple first splicing blocks, but it can also stimulate children's learning interest and cultivate children's ability to discover patterns and solve problems.

[0041] In an optional embodiment, if Figures 1 to 8As shown, the display plate 10 includes a plate body 11, a first partition 12 and a second partition 13. The first partition 12 extends along the length direction of the plate body 11 and is movably installed in the placement groove 111. The second partition 13 extends along the width direction of the plate body 11 and is movably installed in the placement groove 111. The first partition 12, the second partition 13 and the other two sides of the placement groove 111 form a summing area for assisting the summing of natural numbers. This can facilitate the summing of natural numbers 1 to n, that is, when n is 4, the length and width of the summing area are adjusted to a size of 4*5; or, when n is 8, the length and width of the summing area are adjusted to a size of 8*9; or, when n is 9, the length and width of the summing area are adjusted to a size of 9*10.

[0042] In an optional embodiment, the length of one side of the summing region is n*a, and the length of the other side of the summing region is (n+1)*a, where n is the number to be summed;

[0043] In an optional implementation, the lengths of two adjacent sides of the summation area are both n*a, where n is the number to be summed.

[0044] In an optional embodiment, a grid structure is provided in the summing area, and the structure and size of each grid structure are adapted to the structure and size of the second splicing block, so as to assist in placing the second splicing block, the third splicing block and the first splicing block in the summing area.

[0045] In an optional embodiment, a first adsorption component is provided in the lattice structure, and a second adsorption component is provided on the second splicing block 30, the third splicing block 40 and the first splicing block 10. The second adsorption component and the first adsorption component are adsorbed on each other, so that the second splicing block 30, the third splicing block 40 and the first splicing block 10 can be detachably fixed in the placement groove 111.

[0046] Exemplarily, one of the first adsorption member and the second adsorption member may be a magnetic adsorption member, and the other of the first adsorption member and the second adsorption member may be a metal adsorption member or a magnetic adsorption member.

[0047] Specifically, the first adsorption member and the second adsorption member can be permanent magnets or electromagnets, the permanent magnets can be aluminum-nickel-cobalt permanent magnet alloys or iron-chromium-cobalt permanent magnet alloys, and the electromagnets can be selectively powered on and off as needed to control the working state of the locking device. The present application does not limit the specific types and raw materials of the magnetic adsorption members.

[0048] When the second splicing block 30, the third splicing block 40 and the first splicing block 10 are placed in the placement groove 111, the opposite magnetic poles of the first adsorbent and the second adsorbent are opposite, so that the second splicing block 30, the third splicing block 40 and the first splicing block 10 can be firmly fixed in the placement groove 111 under the attraction of the opposite magnetic poles. In this embodiment, the first adsorbent is at least one magnet arranged on the placement groove 111, and at least one magnet mounting groove is arranged at the bottom of the placement groove 111, and each magnet is correspondingly mounted on the magnet mounting groove, and the second adsorbent is a magnetic iron sheet arranged on the second splicing block 30, the third splicing block 40 and the first splicing block 10, and the magnetic iron sheet is installed on the side of the second splicing block 30, the third splicing block 40 and the first splicing block 10 facing the placement groove 111, so that the magnetic iron sheet can be adsorbed on at least one magnet.

[0049] In addition, the first adsorbent and the second adsorbent can be magnetic parts at the same time, wherein the magnetic pole of the first adsorbent is opposite to the opposite magnetic pole of the second adsorbent, and the opposite magnetic pole here means that the opposite magnetic poles of the first adsorbent and the second adsorbent constitute opposite magnetic poles, so that under the attraction of the opposite magnetic poles, the second splicing block 30, the third splicing block 40 and the first splicing block 10 can be fixed on the placement groove 111 and locked.

[0050] It should be noted that the first adsorption part can also be a bar magnet, a round magnet or a magnet of other shapes, and the second adsorption part can be other metal parts that can be attracted by magnets; or the first adsorption part can be other metal parts that can be attracted by magnets, and the second adsorption part is a magnet, and this application does not limit this.

[0051] In an optional embodiment, one end of the first partition 12 is movably connected to the second partition 13 and can be folded or shortened when the second partition 12 moves toward one side, and the other end of the first partition 12 is movably connected to one side of the disk body 11 so that the length and width of the summation area can be adjusted.

[0052] In an optional embodiment, a first movable groove 112 is provided on the disc body 11 , and the first partition plate 12 is inserted into the first movable groove 112 and can move along the guide direction of the first movable groove 112 .

[0053] In an optional embodiment, a second movable groove 113 is provided on the disc body 11 , and the second partition plate 13 is inserted into the second movable groove 113 and can move along the guide direction of the second movable groove 113 .

[0054] In an optional embodiment, a first limiting portion and a second limiting portion are provided on the disk body 11, the first limiting portion is used to limit the position of the first partition 12 in the summing area to prevent the first partition 12 from moving when no external force is applied; the second limiting portion is used to limit the position of the second partition 13 in the summing area to prevent the second partition 13 from moving when no external force is applied.

[0055] In an optional embodiment, n is equal to ten.

[0056] In an alternative embodiment, a is equal to 1 cm.

[0057] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An auxiliary tool for summing, characterized in that: The invention comprises a plurality of identical second mosaic blocks, a plurality of identical third mosaic blocks and a plurality of first mosaic blocks which increase or decrease according to a predetermined rule, wherein the second mosaic blocks are in a square structure with a side length of a, the third mosaic blocks are in an isosceles right triangle structure with a side length of a and the area of ​​the third mosaic blocks is equal to half of the area of ​​the second mosaic blocks, one side length of the first mosaic blocks increases from a to n times of a, the other side length of the first mosaic blocks is a, and one end of the first mosaic blocks has a notch structure with the same shape and size as the third mosaic blocks, so that the first mosaic blocks can form a rectangular structure with side lengths of a and n*a after the third mosaic blocks are spliced ​​to the notch structure, where n is a natural number and a is a number not less than 0; Among them, the auxiliary tool also includes a placement plate, which has a placement groove formed in it. Multiple second puzzle blocks, multiple third puzzle blocks and multiple first puzzle blocks are placed in the placement groove and can be used to assist in the summation of natural numbers through different placement methods.

2. The auxiliary tool according to claim 1, characterized in that: The display plate includes a plate body, a first partition and a second partition. The first partition extends along the length direction of the plate body and is movably installed in the placement groove. The second partition extends along the width direction of the plate body and is movably installed in the placement groove. The first partition, the second partition and the other two side edges of the placement groove form a summing area for assisting the summation of natural numbers.

3. The auxiliary tool according to claim 2, characterized in that: The length of one side of the summing area is n*a, and the length of the other side of the summing area is (n+1)*a, where n is the number to be summed; or, the lengths of two adjacent sides of the summing area are both n*a, where n is the number to be summed.

4. The auxiliary tool according to claim 2, characterized in that: A grid structure is provided in the summing area, and the structure and size of each grid structure are adapted to the structure and size of the second splicing block, so as to assist the second splicing block, the third splicing block and the first splicing block to be placed in the summing area.

5. The auxiliary tool according to claim 4, characterized in that: A first adsorption member is arranged in the lattice structure, and second adsorption members are arranged on the second assembling block, the third assembling block and the first assembling block, and the second adsorption member and the first adsorption member are adsorbed on each other.

6. The auxiliary tool according to claim 2, characterized in that: One end of the first partition is movably connected to the second partition and can be folded or shortened when the second partition moves toward one side, and the other end of the first partition is movably connected to one side of the tray.

7. The auxiliary tool according to claim 6, characterized in that: The disk body is provided with a first movable groove, the first partition plate is inserted into the first movable groove and can move along the guide direction of the first movable groove; and / or, The disk body is provided with a second movable groove, and the second partition plate is penetrated in the second movable groove and can move along the guide direction of the second movable groove.

8. The auxiliary tool according to claim 7, characterized in that: The disk body is provided with a first limiting portion and a second limiting portion, wherein the first limiting portion is used to limit the position of the first partition in the summing area, and the second limiting portion is used to limit the position of the second partition in the summing area.

9. The auxiliary tool according to claim 1, characterized in that: Said n is equal to ten.

10. The auxiliary tool according to claim 7, characterized in that: Said a is equal to 1 cm.

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