Given the added value of teachers of color, a pressing problem remains: There is a considerable demographic mismatch between teachers and students of color in the U.S.

"It's just too late in the year," Superintendent Brenda Cassellius said.

"We are thrilled to partner with Google to provide teacher training across the state, " said State Superintendent of Education Molly Spearman.

Building a pipeline of computer science teachers is one of the biggest steps school leaders can take to accelerate coding, programming and related subjects in their districts, one expert says.