Which innovative product design approach first successfully integrated physical manipulatives with digital tracking to teach advanced algebraic concepts in real-time?

In the world of mathematics education, product design has undergone significant transformations to make complex concepts more accessible and engaging. From traditional tools to digital platforms, companies have innovated to help students and professionals visualize and interact with mathematical principles. This trivia question explores a groundbreaking product design approach that revolutionized how people engage with mathematical concepts.

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Tangible Mathematics Interface (TMI) by MathWorks, which used RFID-tagged blocks to represent variables and operations in 2018
Digital Abacus Platform by NumeriTech, which used camera recognition of traditional abacus movements in 2015
Holographic Equation Builder by EducationVR, which projected 3D holographic shapes manipulated by motion sensors in 2019
Mathematical Tactile Response System by TechLearn, which used pressure-sensitive surfaces to interpret drawn equations in 2016