Rotating Dial Math Aid for Interactive Learning
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Solution Overview
Problem
Current methods for teaching addition and subtraction, such as the number line, lack engaging and interactive tools that effectively help children understand and practice these fundamental math concepts beyond basic levels.
Innovation Solution
A circular mathematical calculation device with two rotating wheels and selectors, allowing users to select numbers from opposing sets for addition and subtraction, enabling the creation and visualization of multiple correct mathematical equations around a circular midpoint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional number line is used to teach addition and subtraction, then the teaching method is simple and easy to understand, but it lacks engagement and interactivity for children
Solution Approach 1:
The patent transforms the static number line into a dynamic circular device with rotatable wheels and movable selectors. The outer wheel can be rotated to change the starting number, the inner wheel rotates to select addend/subtrahend values, and selectors can be positioned at different locations around the circle. This dynamic structure allows the same device to present infinitely varied addition and subtraction problems, greatly enhancing engagement and interactivity while maintaining the simplicity of visual alignment for understanding mathematical relationships.
2Productivity
If multiple addition and subtraction problems are presented on a circular device, then children can practice more problems simultaneously, but the device complexity increases
Solution Approach 1:
The circular calculation device serves multiple functions within a unified structure. The same outer wheel, inner wheel, and selector mechanism that present addition problems can be repositioned to present subtraction problems. By rotating the wheels and moving selectors to different locations around the circle, the device can generate and display multiple different mathematical problems simultaneously, allowing children to practice extensively without requiring multiple separate devices or complex mechanisms for each problem type.
Data Source
AI summary
A device and method of use for carrying out addition and/or subtraction problems is disclosed. The device has two circular dials rotatable with respect to one another. Each dial has at least one set of sequential numbers, and at least one selector allows for selection of a number on at least one of the dials. By rotating the circular dials in position, and selecting a number to be added or subtracted, one then is able to see correct mathematical equations around the entire circle.