La mariposa

In his first year of school, Francisco understands little of what his teacher says. But he is drawn to the silent, slow-moving caterpillar in the jar next to his desk. He knows caterpillars turn into butterflies, but just how do they do it? To find out, he studies the words in a butterfly book so many times that he can close his eyes and see the black letters, but he still can't understand their m...