Why it worked
The video likely gained traction due to its unusual and attention-grabbing hook, "schools not safe," combined with the unexpected use of a calculator for what appears to be a technical project or LARP. The visual of a modified calculator displaying technical data is intriguing and prompts curiosity.
Summary
The video shows a person interacting with a Casio fx-830GTX calculator, navigating through its menu and displaying various functions, including a spectrum analyzer. The calculator appears to be modified or used in a non-standard way, with on-screen text suggesting it's being used for a project or LARP.