The bell rings, signaling the start of the school day. The classroom buzzes with the energy of early Wednesday morning, as students chat among themselves and glance toward the door.

Student 1: whispering to a friend "Hey, where's Mr. Campbell? He’s usually here by now."

Student 2: grinning "Ooh, maybe he's out today! Think we'll get a sub?"

Student 3: leaning over their desk "I hope so. Subs are way easier on us, right?"

The class laughs softly, some nodding in agreement, others watching the door expectantly. The seconds tick by, each one adding to the students' excitement and curiosity.