Which mathematical learning tool company famously rebranded its marketing strategy in the 1980s by shifting from "educational accuracy" to "making math fun," resulting in a 400% sales increase?

The world of mathematics education has seen numerous innovative products over the decades, transforming how students learn abstract concepts. Beyond traditional textbooks, certain math learning tools have achieved iconic status through brilliant marketing strategies that made complex ideas accessible and even exciting. Test your knowledge about a famous marketing pivot that changed math education forever!

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Texas Instruments with its graphing calculators
Geometers' Sketchpad with its dynamic geometry software
Cuisenaire-Gattegno with its colored rods system
Mathematica with its computational software