Schools in Wales have been urged to take greater advantage of the benefits of teaching young children outdoors.
Schools inspectorate Estyn said children under five learn better and develop quicker with outdoor lessons.
Its report said Foundation Phase teachers were not using outdoor opportunities enough to develop children’s reading and writing, Welsh language, creativity or ICT skills.
NUT Cymru expressed surprise, saying its members had embraced the concept.
The Foundation Phase, the Welsh Government’s flagship early years scheme, has been gradually expanded to different age groups since 2008.