As a teacher in a public sector university, I know that real change often arrives quietly. A door opens. A room brightens. The grammar of chalk and talk begins to widen. Our new classroom feels like such a threshold. It has an interactive board, cameras that make distance feel near, and fast networks. Yet these are surfaces. The deeper shift is a change of mind. We are moving from technology as spectacle to technology as a medium of inquiry.

A chalkboard was never only a slab of slate. It was a social contract. We drew ideas, erased them, argued with them, and returned to them. The smart board continues that culture under new conditions. Where chalk traced lines, light now does. Where a diagram stood still, a simulation moves. Where a figure felt final, code makes it revisable. The essence is the same. We gather around a question and share attention to a hypothesis. The form evolves so the essence can endure.

In a public university, scarcity sets........

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