The teacher pleaded guilty to having slapped the children during a lesson at the Saint-Martin-d’Hardinghem school in the Pas-de-Calais region.
When the police visited the school in the wake of the allegations they found the member of staff to be “in a drunken state”.
The teacher was also fined 900 euros by the court in Saint Omer and told to attend an alcohol addiction course.
He has also been banned from teaching for two years.
Click here to read The Local’s “Top Ten French teachers behaving badly”