Year 7 and year 8 pupils from three classes have created a painting 1m wide and 6m long, and are sending it to Wellington to join with four paintings from four other New Zealand schools.
The paintings will be sent to Japan to become part of "The Biggest Painting in the World 2012".
Japan-based, non-profit organisation Earth Identity Project (EIP) gave lengths of cloth to more than 60 embassies - including the New Zealand embassy in Tokyo - and asked staff to distribute them to children around the world to be painted on.
Pieces of cloth were also distributed to 47 prefectures throughout Japan.
The cloth paintings will be sewn together in 2012 to make one huge painting before being compressed and put into a time capsule as a gift to future generations of children.
The EIP's website said the project's aim was to have children of various countries, religions and ethnic groups share the joy of completing the biggest painting in the world, and, in the process, fostering their awareness of the environment, art and culture, and world peace.
Five pieces of cloth were given to the New Zealand embassy in Tokyo as part of the project, and were sent to the Asia New Zealand Foundation (Asia:NZ) in Wellington, to be distributed to New Zealand schools.
Rosebank Primary School teacher Shirley Katon said the school first heard about the project in an email from Asia:NZ and was later selected at random from 30 schools.
"The children were very excited about it and they've pretty much worked on their own - they've done a great job and we're all looking forward to the end result."
The paintings from Rosebank Primary School, Burnside Primary School (Christchurch), Fergusson Intermediate School (Upper Hutt), Mount Maunganui Intermediate (Tauranga) and Windy Ridge School (Auckland) will arrive in Japan in the first week of September.
