AL-ALAWEEN, F.; AL- AYASRAH, A. Construct a Strategy Combines Two Strategies Based on the Constructivist Principles and Measure its Effect on Acquisition of Environmental Concepts Among Ninth Basic Grade Students and Development of their Attitudes Towards Environment. Jordan Journal of Educational Sciences, [S. l.], v. 12, n. 2, p. 155–167, 2024. Disponível em: https://jjes.yu.edu.jo/index.php/jjes/article/view/648. Acesso em: 4 dec. 2024.