"It teaches students about healthy relationships," she said.
"At this age they are embarking on relationships and partnerships with people and we want them to be safe - emotionally safe and physically safe."
Ms Todd said the students had taken to the course well and had enjoyed the day.
Student Mika Gordon said the content of the programme was relevant to the stage of life she and her friends were in.
"It's a really good programme and I'd definitely recommend it to the world," she said.
Constable Paul Miller, one of two school community officers in the city, said about 700 Whanganui students had now been through the programme with Whanganui Girls' College taking part earlier this year.
"We hope to carry it on this year with the other schools."
The students get to take home the Loves Me Not book at the end of the programme, paid for by the country's Zonta clubs.