Which groundbreaking marketing strategy did Texas Instruments use in the 1990s that transformed graphing calculators from niche tools to mainstream educational necessities?

In the world of mathematics education, marketing strategies play a crucial role in how mathematical tools and educational products are positioned to students, educators, and institutions. Effective marketing can help break down the perception that mathematics is intimidating or inaccessible, and instead position it as an essential and approachable subject. Test your knowledge about a famous marketing campaign that revolutionized how we think about mathematical tools!

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The 'Math Matters' campaign featuring celebrity mathematicians endorsing TI calculators
Securing calculator-active standardized testing requirements for major exams like the SAT and AP tests
Offering free online math games that could only be played with a TI calculator serial number
Creating limited-edition designer calculator cases in partnership with fashion brands