San Jacinto College adjunct welding instructor Sharon Guerrero stands in a welding bay at the North Campus, surrounded by sparks and steel. At 27, she’s mastered a trade that satisfies her curiosity. “I used to look at structures and wonder, ‘How do they build that?’” she said. “Now I know how and what tools they used.”. Raised near Houston, Guerrero first enrolled at San Jac...