Former teacher Mary Letourneau, whose affair with one of her ex-pupils caused a national scandal, was sent to prison for 71/2 years yesterday for seeing the boy again.

Letourneau, 36, who had a child with the boy - now aged 14 - was declared in violation of her parole and ordered to return to prison to finish her full term.

The boy's mother broke down in court weeping.

Earlier this week Letourneau was caught violating the main condition of her parole - a sworn pledge not to see the boy.

She was caught sitting in a car with the boy at 3am. In the car was clothing for a man, woman and infant plus her passport and $6,200 in cash, the court was told.

The boy testified that the couple had spent the night together and had kissed and held hands but there had been no sexual contact.

Superior Court Judge Linda Lau, who had granted Letourneau parole in November over the objections of prosecutors, was outraged and called her actions ''profoundly disturbing.'' She then imposed the full sentence.

At her original sentencing, a tearful Letourneau promised to stay away from the boy, saying, ''I did something that I had no right to do morally or legally... I give you my word that it will not happen again.''-Reuters