Designing a Constructivist Learning Environment (CLE): Global Warming Maimoona H. Al Abri George Mason University College of Education and Human Development, Fairfax, Virginia United States malabri@masonlive.gmu.edu Hossein Kord George Mason University College of Education and Human Development, Fairfax, Virginia United States drKord@gmail.com Abstract: The project aims to design a constructivist learning environment (CLE). The learning problem of the CLE is global warming. The pedagogical model of CLE is cognitive flexible hypertext (CFH) which promotes learning in complex, authentic and ill- structured domain. Therefore, the knowledge domain of global warming is interdisciplinary. The target audience of CFH are high school seniors. The design includes learning activities, learning outcomes and assessment that aligns to CFH principles. Students will explore the dilemma of the global warming individually, and there are blogs require collaborative learning in some activities. Constructivism  It emphasizes on how learners construct knowledge, how they relate it to their prior experiences, and believe and interpret objects and events from different perspectives  It suggests that there are multiple perspectives for constructing meaning which is imposed by the individual.  It suggests that the goal of understanding and learning is to learn how to think about a content domain in a meaningful way.  Knowledge is constructed by the learner and it is gained from learner’s experiences.  The factors that influence learning is learner interactions with the environment. Knowledge is personally constructed based on the experience of the learner and the learning environment.  Knowing is a process of actively interpreting and constructing individual knowledge representations .  Learner is an active participant and should be given the opportunity to work through their understandings in various ways.  The central goal of the instruction is the active use of content.  Transfer of learning occurs in an authentic task embedded in a real context. Learning Problem Preview version of this paper. Content and pagination may change prior to final publication. E-Learn 2016 - Washington, DC, United States, November 14-16, 2016