In 2011, which calculator manufacturer faced significant backlash after launching a successor to their popular TI-83 line that removed critical algebraic functions to push students toward their more expensive models?

In the world of mathematics education, calculators and software tools are essential products that shape how students learn. Companies must carefully consider user needs, educational standards, and technological innovation when launching new products. This poll explores one of the most notable product launch failures in the mathematics education market, testing your knowledge of industry history and the challenges of balancing innovation with user expectations.

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Texas Instruments with their TI-84 Plus CE 'Essentials' model
Casio with their fx-CP400 'ClassPad II' model
HP with their Prime G2 'Educational Edition'
Sharp with their EL-W516 'WriteView Classroom' model