Somebody Else's Kids by Torey L. Hayden

A small seven-year-old boy who couldn't speak except to repeat weather forecasts and other people's words . . . A beautiful little girl of seven who had been brain damaged by terrible parental beatings and was so ashamed because she couldn't learn to read . . . A violently angry ten-year-old who had seen his stepmother murder his father and had been sent from one foster home to another . . . A shy twelve-year-old from a Catholic school which put her out when she became pregnant . . .

"What do we matter?"
"Why do you care?"

They were four problem children-put in Torey Hayden's class because no one else knew what to do with them. Together, with the help of a remarkable teacher who cared too much to ever give up, they became almost a family, able to give each other the love and understanding they had found nowhere else.