Pedagogical Mediation and Scientific Knowledge Using a Sample of Ninth Grade Science Teachers in Two School Districts of the Costa Rica Educational System for the Development of Scientific Competencies. Rev. Electr. Educare [Internet]. 2019 Apr. 10 [cited 2024 Apr. 27];23(2):1-24. Available from: https://www.revistas.una.ac.cr/index.php/EDUCARE/article/view/9690