Fake Casio Scientific Calculators Surge in Popularity
The article discusses the rise of counterfeit Casio scientific calculators, particularly the fx-991EX model, which are often poorly made and unreliable, leading to issues for students and teachers. Casio's recent model changes and the market for cheaper knockoffs have caused confusion and quality concerns, prompting calls for Casio to revert to its previous design and improve counterfeit prevention.