in ths video spongebob is getting ready to go to school, like he bathing, breakfast, and everything is helped by gerry, and then when he want to leave the house, he went to the door and opened it, and boommm there is Patrick in front of his house inviting him to catch jellyfish and ends with petrick going to spongebob's school.

while on the way to spongebobs school, patrick, spongebob, and spongebob's parents sing together in the car, long story short they finally arrived at school.

then starting with Spongebob taking Patrick around the school, introducing him to various things with the word learning at the end of the word like, "first thre is fountain of learning, and lockers of learning, and then stairs of learning" 

long story short Patrick has entered the class and the teacher asked him to introduce himself,

"hey young man, why u dont stand up and introduce ur self"

then he said to spongebob

"whos the fat kid talking to?"

and spongebob explained that he is the teacher then petrik introduced himself because he was nervous he said 24 and one class laughed, then the teacher started explaining but spongebob and petrik couldn't stop joking and laughing at 24 and ended with them both being punished.