Which graphing calculator marketing strategy revolutionized the mathematics education market in the 1990s and created a sustainable product ecosystem that still dominates today?

In the world of mathematics education and retail, certain products have transformed how we teach, learn, and apply mathematical concepts. Graphing calculators represent one of the most significant educational technology product categories of the past few decades, creating an entirely new market segment and changing classroom dynamics. This poll tests your knowledge about the market trends and retail strategies that shaped this mathematical revolution.

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Texas Instruments' strategy of targeting educational institutions to establish their calculators as required classroom tools, creating a captive student market
Casio's approach of annual model updates with increasingly specialized functions to encourage regular consumer upgrades
HP's premium pricing model that positioned graphing calculators as professional status symbols for engineers and mathematicians
Sharp's mass-market strategy of creating low-cost, simplified graphing calculators for general consumer use