Which innovative retail strategy did Texas Instruments first implement in the 1990s that dramatically increased their graphing calculator market share in education?

Texas Instruments revolutionized mathematics education with their graphing calculators, becoming staples in classrooms worldwide. These devices transformed how students learn complex mathematical concepts, creating a unique position in educational technology. How well do you know the retail and brand history of these iconic mathematics tools that have helped generations of students solve equations?

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Creating educator workshops and providing free calculators to mathematics teachers to drive classroom adoption
Developing exclusive retail partnerships with college campus bookstores that prevented competitor calculator sales
Implementing a calculator subscription model where students paid monthly fees for upgraded features
Launching calculator vending machines in schools that offered discounted prices during exam seasons