A group of leading tech companies is teaming up with two teachers’ unions to train 400,000 kindergarten through 12th grade teachers in artificial intelligence over the next five years.

The tech industry’s campaign to embed artificial intelligence chatbots in classrooms is accelerating. The American Federation of Teachers, the second-largest US teachers union, said Tuesday that it would start an AI training hub for educators with $23 million in funding from three leading chatbot makers: Microsoft,