1. This problem is divided into two aspects. First, you translate English works for the purpose of non-profit, and there is no infringement without public publication. You give the translated works to the teacher, who can use them for academic research and classroom teaching, and they are also not infringing.

2. Second, if the teacher publishes his works publicly, it is infringement. When you translated your work, you didn't know that the teacher would publish it publicly. You don't infringe, only the teacher infringes.