“…However, constraints that arise in applying environmental education became the reason why most teachers do not apply environmental education in their teaching and learning in schools. Previous research has reported that the major constraints were lack of time (Kim & Fortner, 2006;Lane et al, 1994;McKeown-Ice, 2000;Shaari, 2009;Pace, 2003;Samuel, 1993;Simmons, 1995), and limited course handbooks and training on environmental education (Kim & Fortner, 2006;Samuel, 1993;Simmons, 1995). Lack of manuals and courses related to environmental education among teachers has resulted in teachers having low knowledge about environmental education and this has resulted in teachers being incapable of integrating environmental education in their teaching (Samuel, 1993;Lane et al, 1994;Kin, 2004).…”