Two sets of parents appeared in magistrates court in Swindon where they were accused of failing to secure regular attendance for their children.
One of the pupils had taken a five-day holiday in October last year without written permission. This meant he had attended 92.96% of lessons during the entire term, an average which dropped to 86.84% in the first half of the term.
The second couple had taken their primary-school child out of school for five days in September, giving them an attendance figure of 92.14%.
New rules set by the Department for Education mean a child will be considered a serious truant if they miss at least 10% of lesson time.
However, the court found that the period of absence should be based on the full term-period, rather than the shorter period.