JPS58185Y2 - Mathematics lesson set - Google Patents

Description

[Detailed description of the invention] This invention is the perfect number lesson for children from infants to children to understand numbers and learn addition, subtraction, multiplication and division, especially 2-digit numbers and addition and subtraction of 2-digit numbers. Regarding the set.

The applicant has already proposed a number teaching tool that uses a combination of a plurality of rectangular parallelepiped display pieces each displaying the numbers 1 to 10.

(Utility Model Application No. 54-105657) This number teaching tool uses a combination of display pieces to help students understand the relationship between number words, numbers, and quantities at the same time, but it also allows them to calculate addition and subtraction based on the decimal system. There was no way to actively teach children about calculations of two-digit quantities and addition and subtraction of two-digit numbers, and it was not possible to quickly understand them.

The present invention uses the number display piece to facilitate addition, subtraction, multiplication and division, that is, calculation of addition and subtraction based on the decimal system, composition of two-digit numbers, and calculation of addition and subtraction of two-digit numbers on the tray. It provides a math training set that can be used to help students understand, and consists of 10 rectangular parallelepipeds 1, 2, etc. that have the same width and height dimensions.
...10, the width of one rectangular parallelepiped 1 is made the minimum, and the width of the other rectangular parallelepipeds 2, 3...10 is sequentially set to a multiple length of the minimum width, and the length of the rectangular parallelepiped 1 is set to the minimum width. Write the number 1 on the plane formed by the width and width, and similarly write the number 1 on each plane formed by the height and width of the other rectangular parallelepipeds 2, 3...10 in order of decreasing width. ,
Numbers 2 to 10 are written respectively to form display pieces from number l to number 10, and a plurality of each display piece and number 1 are displayed.
A first storage part 11 stores a rectangular parallelepiped 10 with a 0 display piece vertically or horizontally, a second storage part 12 stores only a rectangular parallelepiped 10 with a numeral 10 display piece horizontally and removably, and a numeral. A pair of teaching tables 14 that are connected to a third storage part 13 that stores a rectangular parallelepiped 10 with a number 10 display piece in a horizontally removable manner or vertically stores a rectangular parallelepiped 5 with a numeral 5 display piece in a removable manner. .14 in combination.

To explain in more detail with reference to the drawings showing an example of the implementation of the present invention, as shown in the first figure, each display piece has a rectangular parallelepiped shape of 1°2...
The width and height of 10 are 1:1, and the width of the rectangular parallelepiped 1 marked with the number 1 with the minimum width is the length of the basic unit. In the figure, the length and height are the same length. ), and the width of the rectangular parallelepiped 2°3...10 of the other display pieces was set to be a multiple of the number displayed relative to the basic unit length.

The number of each display piece is not particularly limited, but it is preferable to have a large number of display pieces with a small number displayed, and it is particularly preferable that there are a large number of display pieces with the number l, which is the most frequently used number. .

In addition, circles 15 corresponding to the numbers written on each display piece are attached to the plane located on the back side of the plane on which the numbers are written, so that it is easy to understand the numbers.

Furthermore, as shown in the second figure, the teaching table 14 is integrally molded with first, second, and third storage sections 11, 12, and 13 made of synthetic resin.

Explaining with reference to FIGS. 3 to 7 which show several examples of how to use the above embodiments, first, we will explain the basics for understanding two-digit numbers and calculations for raising and subtracting. In order to understand the number 5, as shown in the third diagram,
The rectangular parallelepiped 5 with the number 5 display piece is stored horizontally in the third storage part 13 of the teaching table 14, and the rectangular parallelepiped 1° 2 ... 4 of the number 1 to 4 display pieces are combined above it. and store it.

This makes it easy to understand that number 5 is composed of various combinations of numbers 1 to 4.

Next, in order to help students understand set numbers and ordinal numbers from number 1 to number 10, two teaching tables 14 are arranged in parallel in the same direction as shown in the fourth diagram, and the first storage section 11 of one teaching table 14 is The rectangular parallelepiped 1 with the number 1 display pieces is stored in a stepwise manner from below, and the rectangular parallelepipeds 10°9... Stack them one by one from the bottom and store them.

This makes it easy for students to understand that numbers 1 to 10 are set numbers of number 1, and that the set numbers 1 to 10 are ordinal numbers.

Furthermore, in order to help students understand the structure of the number 10, which is the basis of the decimal system, as shown in FIG.
A rectangular parallelepiped with display pieces of numbers 1 to 9 on 1°2...
- Store 9 in combination.

Compare the rectangular parallelepipeds 1, 2, 3.4 of the stored display pieces with the rectangular parallelepiped 10 of the number 10 display piece, and the number 10 is the number 1 to number 9.
Help students understand that it is composed of a combination of

Next, as shown in Fig. 5, the rectangular parallelepiped 10 with the number 10 display pieces is stored in the first storage part 11 of the teaching table 14, and on the left side of it, several rectangular parallelepipeds 5 with the number 5 display pieces are stacked. Store the rectangular parallelepiped with numbers 1 to 5 in the blank space on the right side.
...5 is combined and stored.

This will help students understand that when considering number 10, it can be constructed using other combinations of numbers based on number 5.

Then, as shown in FIG. 5C, the first storage section 1 of the teaching table 14
1, first store the rectangular parallelepiped 10 of the number 10 display piece,
On the left side thereof, rectangular parallelepipeds 9°8...1 of number 9 to number 1 display pieces are stacked and stored, and in the blank space on the right side, number 1 to number 9 display pieces 1, 2... ...
Have them use and store each one of 9.

This will help students understand that number 10 is composed of two combinations of number 1 to number 9.

After having students understand numbers 1 to 10 in this way, in order to help them understand two-digit numbers, they can arbitrarily use multiple rectangular parallelepipeds 1, 2...9 on the display pieces for numbers 1 to 9. As shown in FIG. 6, the students are allowed to store as much as possible in the second storage part 12 of the teaching table 14, and the remaining rectangular parallelepipeds 3 and 4 of the number 3 and number 4 display pieces are stored in the first storage part 11.

On the other hand, a rectangular parallelepiped 10 with a number 10 display piece is placed in the third storage part 13.
, and make them understand that the combination of numbers of the plurality of display pieces stored in the second storage part 12 is the same as the number 10. number 7
and that the number 17 is formed by both.

In the same way, have students understand the structure of other two-digit numbers.

Finally, when helping students understand addition and subtraction of two-digit numbers, we will explain addition and subtraction of two-digit numbers that are particularly difficult to understand.

For example, in the case of 27+15, two teaching tables 14 and 14 are installed in parallel as shown in FIG. number 10
A rectangular parallelepiped 10 of display pieces is stored, and a rectangular parallelepiped 1 of seven number 1 display pieces to indicate the number 7 is stored in the second storage part 12.

The first storage part 11 of the other teaching table 14 stores one rectangular parallelepiped 10 to represent the number 10 out of 15, and the second storage part 12 stores five rectangular parallelepipeds to represent the number 5. The rectangular parallelepiped 1 of the number 1 display piece is used to help children understand the structure of the one-digit and two-digit numbers of both numbers while comparing them.

Next, as shown in Figure 7, the number 10 on both teaching tables 14.14
Only the rectangular parallelepipeds 10 of the display pieces are assembled outside both teaching tables 14 and 14.

Furthermore, as shown in FIG. 7C, the rectangular parallelepiped 1 of the number 1- display piece in the second storage section 12.12 of both teaching tables 14.14 is stored in the second storage section 12 of one of the teaching tables 14 as much as possible. Then, the rectangular parallelepiped 1 of the display piece with the number 1, which cannot be stored, is stored in the third storage part 13.

After making them understand that the entire rectangular parallelepiped 1 of the number 1 display piece stored in the second storage part 12 is equal to the number 10,
Replace the rectangular parallelepiped 10 of the display piece with the number 0 with the rectangular parallelepiped 10 of the display piece with the number 10 and the remaining rectangular parallelepiped with the display piece with the number 1 as shown in FIG. 7d. Align the rectangular parallelepipeds 10.

This will help students understand that the addition of number 27 and number 15 is number 42.

It is easily understood that by these operations, the 10's digit and the 1's digit are added separately.

As an example of use, although an example of multiplication and division is not shown, it can be performed using a display piece and a teaching table.

According to the present invention, by using the rectangular parallelepipeds 1, 2, . 10 by using in combination with 14
The understanding of numbers based on base system as well as their addition and subtraction can be easily promoted.In particular, when adding and subtracting two-digit numbers, which are difficult to understand, a pair of teaching tables 14 are used for adding and subtracting numbers that are difficult to understand. Since it can be used in parallel, 2
The number of digits can be manipulated on each teaching table 14, so it is possible to teach children who do not have a sufficient understanding of the decimal system by helping them understand the composition of two-digit numbers. It has the advantage of being very easy to understand and providing a simple structure.

[Brief explanation of the drawing]

The illustrations show an example of the implementation of the present invention; Fig. 1 is a perspective view of each display piece, Fig. 2 is a perspective view of a teaching table, and Figs. 3 to 7 are examples of its use. This is an explanatory diagram for showing. 1.2...10...cuboid, 11...
....First storage section, 12...Second storage section, 1
3...Third storage section, 14...Teaching table.

Claims (1)

[Scope of utility model registration request] 10 rectangular parallelepipeds with the same width and height dimensions 1.2.
...10, the width of one rectangular parallelepiped 1 is the minimum, and the widths of the other rectangular parallelepipeds 2, 3...10 are set in order,
Rectangular parallelepiped 1 whose length is a multiple of the minimum width and whose width is the minimum
The number 1 is written on the plane formed by the vertical width and the horizontal width of Numbers 2 to 10 are sequentially written on the screen, and display pieces from number l to number 10 are formed, and a plurality of each display piece and the rectangular parallelepiped 10 of the number 10 display piece can be inserted and removed vertically or horizontally. A first storage part 11 that can be stored freely and a rectangular parallelepiped 10 with a number 10 display piece
Second storage part 12 and number 1 that store chisels horizontally and removably
A pair of teaching tables connected with a third storage part 13 in which a rectangular parallelepiped 10 with a 0 display piece can be inserted and removed horizontally or a rectangular parallelepiped 5 with a number 5 display piece can be inserted and removed vertically. 14. A number training set consisting of a combination of 14.