In 2011 the Board for the Cooperation with Schools, organaized in Okayama Prefectural Museum of Art, has designed and produced thirty sets of learning materials for Japan's traditional art and begun to lend them to local schools. Here we show the purpose of the material sets and their production process, discuss their educational values, and propose an expected scheme of teachers' network which will bring further spread of the materials.<BR>Okayama Prefectural Museum of Art has involved in many projects in collaboration with local school teachers. The Board was set up in 2010 through the reexamination of those projects. The latest project initiated by the Board, which is expected to enhance the consistency and regularity of the museum-teacher cooperation, is discussed in this paper.