the whole school or
all the school
It means: "we have it in school"--- en la escuela la / lo tenemos...In school we have... en la escuela tenemos...
You probably mean, "...que aprendes en la escuela?" This mean, "... that you learn in school."
"Como van a la escuela" in English means "how do they go to school."
you were exiting the school
la escuela
you were exiting the school
It means, "The school stinks."
"Salgo para la escuela" means "I am leaving for school" in English.
"Como es la escuela" means "What is the school like?" in English.
"Estas en la escuela" in English means "You are at school."
La escuela es aburrida
La escuela means "the school" in English.