How does Ernesto Galarza make distinctions between his new school and his old school in Barrio Boy? He notes their sizes; his new school is big, while his old one was small. He notes their hours; his new school opens early, while his old one opened late. He describes their locations: his new school is the country, while his old one was in a big city. He describes what they are made of; his new school is glass and steel, while his old one was brick.