Rotatable Wheel Multiplication Calculator for Children

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Learning basic multiplication operations is challenging for young children, and existing multiplication calculators do not effectively facilitate easy learning and mastery of these operations.

Innovation Solution

A multiplication calculator featuring a cylindrical platform with rotatable wheels, each with steps representing numbers from 0 to 9 for multiplicands and additional wheels with incremental numbers for multipliers, allowing users to rotate wheels to find multiplication answers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional multiplication teaching methods are used, then children can learn multiplication operations, but the learning process is difficult and time-consuming

Engineering Contradiction:
Improveease of learning multiplicationVSAvoidtime to master multiplication
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The multiplication learning process is segmented into individual wheels, each representing a different multiplier (2 through 12). Children can focus on one wheel at a time, breaking down the complex task of learning all multiplication tables into manageable segments. This allows progressive mastery without overwhelming the learner.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The calculator uses rotatable wheels that can be dynamically adjusted. Each wheel can be rotated to display different multiplication sequences, allowing children to interactively explore patterns and relationships between numbers. This dynamic interaction makes learning more engaging and helps reinforce memory through active manipulation.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If existing multiplication calculators are used, then multiplication problems can be solved, but they do not effectively facilitate easy learning and mastery

Engineering Contradiction:
Improveeffectiveness for learning multiplicationVSAvoidease of use for children
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The calculator is designed to be self-explanatory and self-teaching. Each wheel automatically displays the correct multiplication sequence when rotated, and the answer window automatically shows the result. Children learn by exploring the device themselves without requiring external instruction or complex operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The answer window acts as an intermediary that provides immediate feedback when a multiplication problem is solved. The window clearly displays the result, reinforcing the correct answer and helping children verify their understanding. This visual feedback mechanism bridges the gap between the child's manipulation of the wheels and the mathematical concept being learned.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250171288A1Mathematical calculator and method of using the same
Publication Date: 2025.05.29 OHAYON KFIR
  • US20250171288A1 patent drawing
  • US20250171288A1 patent drawing

AI summary

A mathematical calculator, and a method of using the same, is disclosed which can help people, particularly children, to easily learn and master multiplication operations. The mathematical calculator comprises a substantially cylindrical platform, and in accordance with a first embodiment, the multiplicands and multipliers are located within a plurality of columns and rows defined upon a plurality of adjacent wheels which are rotatable around a longitudinal axis of the platform, whereas in accordance with a second embodiment, the multiplicands and multipliers are located within a plurality of columns and rows which are defined upon a solid block.