The Andrews Forest LTER K-12 teacher professional development program offers opportunities for K-12 teachers to build their understanding of the scientific process and to expand their capacity to engage their students in field-based science inquiry based on Andrews LTER research. Through funding from the National Science Foundation Schoolyard LTER program and other grants, the Andrews Forest partners with the OSU Center for Research on Lifelong STEM Learning and the Oregon Natural Resources Education Program (ONREP) for projects that involve teachers in experiential investigations and problem solving, data collection and analysis, teacher collaborations, and development of research-based projects for their schoolyards. For more on our Education programs, see https://andrewsforest.oregonstate.edu/outreach/education/k12