"Those kids are my heroes," Debbie Shultz, 46, said as she recuperated at home with stitches in her hand and leg where she was cut in the Wednesday attack at Heritage High School.
Shultz and the six students appeared on the CBS News' Early Show on Friday.
"I was in total disbelief. It was a surreal moment, and we were all frozen in time," the teacher said of the attack.
Her husband, Theodore Franklin Shultz, 51, of Conyers, was being held in the Rockdale County Jail on charges of aggravated assault, aggravated stalking, cruelty to children, disrupting a school and carrying a weapon on school property.
Nimesh Patel, 17, was taking a nap after finishing his final when he heard screaming and saw his teacher trying to fend off her assailant.
"I first thought about running out the door, but I saw she needed help," Patel told the Early Show. "I ran back and grabbed the man and we all threw him down."
Scott Wigington, 17, son of the Rockdale County sheriff, grabbed the hand holding the knife. Several others helped push the man to the ground.
The teacher said she had just completed divorce proceedings against her husband after seven years of marriage and had a restraining order against him.
"I'm sorry that they were called upon to do such a huge job so early in their lives, but without them I wouldn't be alive," said Shultz.
The suburban Atlanta school was the site of a May 1999 shooting in which a student opened fire on classmates, wounding six. T.J. Solomon pleaded guilty but mentally ill to charges of aggravated assault and is serving a minimum of 18 years in prison.