Positive and negative dice

A regular icosahedron die with positive and negative numbers addresses the tediousness of learning arithmetic by enabling quick, interactive, and competitive problem-solving with immediate feedback.

JP2025162936APending Publication Date: 2025-10-28后藤 润司
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Patent Information

Application Number
JP2024076164
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

Existing methods for learning positive and negative arithmetic are tedious and time-consuming, lacking engaging and efficient ways to practice a large number of calculations.

Method used

A regular icosahedron die with positive and negative numbers from 0 to 9 printed on each side, allowing multiple users to solve arithmetic problems through rolling and interaction, with immediate feedback on mistakes.

Benefits of technology

Facilitates quick and engaging practice of positive and negative arithmetic, providing immediate correction and competitive learning to enhance accuracy and efficiency.

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Abstract

To solve a problem that, in positive and negative calculation, although there are a large number of explanations for understanding a concept of its establishment, there is few devising for an arithmetic operation as an output, and there is a demand for a solution that a person can perform many arithmetic operations with pleasure.SOLUTION: When two regular-icosahedra dice marked with numbers of twenty from positive and negative 0 to 9 are rolled, an expression of positive and negative four patterns appears instantaneously. In addition to the game property of rolling dice, if a game is played by a group of people, a spirit of competition makes a player want to calculate faster and correctly, which improves the player's calculation ability. The present invention relates to the way of marking signs and numbers in the regular-icosahedra dice and their distribution that improve ability of positive and negative calculation.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] This invention is a specialized calculation die used by students to learn positive and negative arithmetic. [Background technology]

[0002] To learn this, there are paper-based drills and textbooks, as well as computer-based problem sets. There are also dice using regular icosahedrons.

[0003] To master positive and negative arithmetic, you need to solve many problems to become familiar with it, but it takes time to get started on textbooks or computers, and the problems themselves are often uninteresting, so it can be tedious.

[0004] Is there a way to solve a large number of calculations quickly and easily? To answer this question, we came up with the idea of ​​a regular icosahedron with positive and negative numbers from 0 to 9 printed evenly on each side. By putting these together in pairs, several people can roll the dice and answer each other by adding and multiplying, making it possible to solve "a large number of calculations quickly and easily." Effects of the invention

[0005] It's easy to access and tackle problems quickly. You can complete many problems in a short amount of time. If you make a mistake, the puzzles will correct you, so you'll immediately understand why you made the mistake. You'll compete to come up with the right answer, so you can answer quickly and accurately. [Brief explanation of the drawings]

[0006] [Figure 1] The development diagram of the present invention and the arrangement of positive and negative numbers [Figure 2] Position of symbols and numbers on each face DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, an embodiment of the present invention will be described. (1) Do not place numbers anywhere other than those specified in the unfolded diagram so that the variance of positive and negative numbers is the same. (2) Place the sign at the corner and the number on the side. (3) Its direction is indeterminate. (4) There are no rules other than using two dice.

Claims

[Claim 1] A pair of regular icosahedral dice, each with positive and negative numbers from 0 to 9 evenly spaced on each side, allow for quick and accurate arithmetic calculations with two positive and negative numbers.