Kimberly Bryant, who spent a decade as an engineer in biotechnology, is the founder of the educational nonprofit Black Girls Code. Gaming has evolved into one of what Ms. Bryant calls the “core pillars” of Black Girls Code. “We find that it taps into every element of coding necessary to be a technologist,” she said. “You have the design, basic computational skills, math.” She favors gaming platforms and languages that are designed to teach coding, like Scratch, Alice and a new platform called Beta.