Which retail innovation strategy first made graphing calculators widely accessible to mathematics students in the 1990s?

The mathematics industry has evolved significantly in how its products are marketed and sold to students, educators, and professionals. From textbooks to digital learning tools, companies have employed various strategies to reach their target audiences. This trivia question tests your knowledge about a groundbreaking retail trend that transformed how mathematical tools reached consumers.

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University bookstore exclusivity partnerships with calculator manufacturers
Big-box retailers (like Walmart, Target) stocking advanced calculators in school supply sections
Direct-to-student mail order subscription services for mathematical tools
Teacher-only purchasing programs with classroom distribution systems