Jump Jam was created by two-time world aerobic champion Brett Fairweather and has been running for 17 years.
It combines music and movement to form a dance-like routine that is a fun way of excercising for primary school children.
"Today was awesome. Brett's always really motivating for the teachers and the kids, and they all got into it and had heaps of fun," Ms Skelton-Morris said.
"It's hugely important that we get someone like him here, because otherwise the kids just see us doing it and if the teachers aren't doing it, then they don't get anybody."
Mr Fairweather is currently visiting eight schools per day. Before Bulls School he was at Manchester Street School in Feilding and was headed to Halcombe School next.
Due to some injuries, Mr Fairweather has not toured for a few years, but after healing up he decided to get out and promote a new Jump Jam competition.
"It's a way to get students to have a goal, be in a team and present their Jump Jam routine to me in a competition versus other schools," he said.
"They've got a great bunch of teachers here. They all got involved and that's why primary schools are great.
"The kids see that and it makes them want to participate, everyone wants to get up, groove and move."
Mr Fairweather got started in fitness 30 years ago and said he knew he would be involved in it throughout his life.
The journey towards Jump Jam and helping out children began when he appeared on a TV series 22 years ago called Maraerobics.
While his current tour is throughout Rangitikei, Mr Fairweather said it would not end there.
"I'm going to go to the Whanganui schools later in the year. I haven't got a time yet, but I'll give them a couple of months' notice and then I'll be there.
"I'm absolutely looking forward to it."