The dismissal of a longtime biology teacher in eastern Idaho is causing former students to rally to her defense ahead of a public hearing.

The Snake River School District's Board of Trustees plans to hold a due process hearing Friday about a decision not to renew Elaine Asmus' contract for next school year.

Her attorney says Asmus had a disagreement with teacher Laura Gabrylczyk, the wife of district Superintendent Mark Gabrylczyk.

Attorney Paul Stark says Laura Gabrylczyk filed a formal complaint that led to the decision not to renew Asmus' contract.

Nathan Hammond took Asmus' Advanced Placement biology class nearly 20 years ago and is using social networking to notify former students.

Hammond says Asmus was a key part of his education that led to his work in genetics research at Stanford University.

District officials declined to comment.