Open educational practice (OEP) in an emerging approach to learning and teaching within K-12 learning environments that is becoming more established in higher education. As K-12 pedagogical practices shift from instructivist to constructivist designs, there is growing evidence that OEPs encourage access to learning for all, support collaboration with other learners in formal and informal learning environments, and that OEP pedagogical designs invite individual learners’ voices and choices in learning. However, while practices are emerging and there is growing support for research that examines K-12 open educational practice, this area is currently underexplored. Using a design based research perspective, this research will examine a grade 10 Building Futures program by implementing an open educational practice framework to support student learning. This study builds from an analysis of existing research on developing open learning practice in K-12 learning environments, describes and evaluates OEP in an existing grade 10 Building Futures classroom, and evaluates the impact of OEP in a grade 10 learning environment to inform broader K-12 OEP design principles.