Effects of Learning Environmental Education Using the 5Es-Learning Cycle Approach with the Metacognitive Moves and the Teacher’s Handbook Approach on Learning Achievement, Integrated Science Process Skills and Critical Thinking of High School (Grade 9) Students

Sombat Appamaraka, Paitool Suksringarm and Adisak Singseewo

Pakistan Journal of Social Sciences 6 ( 5 ): 287 - 291 , 2009