He said the boy presented the patu to the teacher, who he had clashed with in the past, at a big assembly to clear the air.
"It's about empowering the family and passing on the art, because we have a cultural identity loss here in Wairarapa."
The two-hour class, which takes place at Queen Elizabeth Park on Wednesday evenings and at Papawai Marae on Thursday evenings, is open to all ages, genders and cultures, although children under 16 must be accompanied by an adult.
Techniques taught are based on the Ngati Kahungunu style. Classes begin with a karakia and warm-ups and progress to strikes, blocks, battle formations and games, with students eventually learning how to use and make weapons such as taiaha and patu. Classes are also taught at schools around Wairarapa, including Makoura College, Kahutara School and Te Kura Kaupapa Maori O Wairarapa.
Whanau Ora Wairarapa pouwhakahaere/programme manager Andre Le Geyt said young people who were initially only eager to learn the physical elements quickly developed other skills.
"You see this wairua [spirit] come over them and they become more disciplined and they learn how to plan and achieve their goals, they become more disciplined, so there's life skills that we are teaching these kids."
"That aggressive behaviour and focus on fighting changes totally and it becomes about discipline and it becomes about respect and whanau, and learning the tradition ... and behaviour changes."
Anyone interested in joining Mau Rakau Wairarapa classes can contact Whanau Ora Wairarapa on 06 377 5347.