Gonville School students were the first to participate in the ASB St John in Schools programme when it was launched in Whanganui on Wednesday.
The programme aims to educate younger students about ambulance services and older students about the importance of first aid.
Central region manager of St John New Zealand Andrea Webber said that Whanganui has been on the radar for two years.
"The biggest challenge has been getting the staff, employing the right educators because we make a really concerted effort to hire the right people for the role.
"They have to love tamariki, they really do, we work with them every day and if they don't love them it's really hard to deliver."