Fluid-Based Geometric Planimetry Appliance for Intuitive Area Calculation

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Solution Overview

Problem

Traditional methods for teaching geometric planimetry, such as using formulas for rectangles and right triangles, require algebraic operations and do not adequately promote spontaneous thinking and logical training in learners, especially for shapes like parallelograms and trapezoids.

Innovation Solution

A computing appliance with a transparent container and preset scale combinations on its surface, allowing learners to derive areas of geometric shapes by observing fluid levels when the container is tilted, forming various geometric shapes like rectangles, trapezoids, and right triangles without algebraic operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional area formulas (rectangle, triangle, parallelogram, trapezoid) are used for teaching geometric planimetry, then area calculation can be achieved, but algebraic operations increase difficulty for learners and spontaneous thinking ability is not trained

Engineering Contradiction:
Improvearea calculation accuracyVSAvoidlearner operation difficulty
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent uses a fluid (water) inside a transparent container to visually represent geometric shapes. When the container is tilted at different angles, the fluid forms various geometric shapes (rectangle, right triangle, parallelogram, trapezoid) whose areas can be directly observed and compared, eliminating the need for algebraic formula operations while maintaining measurement accuracy

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent introduces a fluid as an intermediary substance between the learner and the geometric concepts. The fluid's surface naturally forms geometric shapes that visually demonstrate area relationships, serving as a mediator that makes abstract mathematical concepts concrete and intuitive without requiring algebraic operations

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If area formulas are memorized and applied repeatedly, then area problems can be solved, but spontaneous thinking and logical training are insufficient

Engineering Contradiction:
Improveproblem solving efficiencyVSAvoidspontaneous thinking ability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent transforms static geometric shape representations into dynamic ones by allowing the container to be tilted at various angles. This dynamic manipulation enables learners to observe how the same fluid volume forms different geometric shapes, fostering spontaneous thinking and logical understanding of area relationships without relying on memorized formulas

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If unit area covering method is used for rectangles and squares, then area measurement is simple, but parallelogram, triangle and trapezoid cannot be fully covered by unit area making calculation difficult

Engineering Contradiction:
Improvearea measurement simplicityVSAvoidshape type coverage
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent creates a universal measurement approach using fluid volume as a common reference that works for all geometric shapes (rectangles, squares, parallelograms, triangles, trapezoids). The same fluid quantity serves as a consistent area reference across different shape types, eliminating the need for shape-specific unit covering methods while maintaining measurement simplicity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables learners to compute areas of different geometric shapes intuitively, promoting spontaneous thinking and logical training, and overcoming the limitations of traditional teaching methods.

Implementation Method 1

when the container is tilted and a variety of geometric shapes formed accordingly by a fluid level of the fluid

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS10964230B2Computing appliance for geometric planimetry
Publication Date: 2021.03.30 NATIONAL TAIWAN NORMAL UNIVERSITY
  • US10964230B2 patent drawing
  • US10964230B2 patent drawing
  • US10964230B2 patent drawing

AI summary

A computing appliance for geometric planimetry is provided, comprising a container, a vertical dividing rule, a horizontal dividing rule, a horizontal point line and a middle point line. A fluid is filled into the container, and the vertical dividing rule, the horizontal dividing rule, the horizontal point line and the middle point line are configured on a same instructing surface of the container and arranged on each of the periphery surrounding like a rectangle. When the container is vertically disposed, a fluid level is aligned with the horizontal point line. And, when the container is tilted to form at least one angle, an area of at least one geometric shape can be derived by employing the vertical dividing rule, the horizontal dividing rule, the horizontal point line and the middle point line.