Which calculator brand first successfully marketed graphing calculators to schools through an innovative educational program that provided curriculum materials alongside their products?

Before smartphones could do calculations, dedicated calculators were essential tools for mathematics. Their evolution represents one of the most significant product developments in mathematical tools history. Texas Instruments, Casio, HP, and others transformed how we approach mathematical problems through innovative calculator designs and marketing strategies. This poll tests your knowledge about the business and marketing history behind these mathematical powerhouses.

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Texas Instruments with their TI Math Explorer program in the early 1990s
Hewlett-Packard with their HP Academic Partnership in the mid-1980s
Casio with their Function Education System launched in 1992
Sharp with their Classroom Calculator Initiative of 1989