Guided Inquiry Based Learning on the Concept of Ecosystem Toward Learning Outcomes and Critical Thinking Skills of High School Students
Survey result by Trends in International Mathematics and Science Study (TIMSS) 2007 reported that Indonesian students achievement in mathematics was ranked 36 th of 49 countries, while in science lessons was ranked 35 th of 49 countries. Survey result by PISA on 2009 in mathematics and science reported that Indonesia achievement left behind from Singapore, Thailand, and Korea. The important things that need to be done are how to design learning and do assessment that able to stimulate the increasing of science literacy. Quasi experimental research aims to examine the effects of guided inquiry based learning on the concept of ecosystem towards learning outcomes and critical thinking skill of high school students. This study population is students from grade X SMA Negeri 1 Sungai Tabuk. Samples were determined purposively as many as four out of seven classes. The learning result of cognitive products and cognitive process are collected using tests and analyzed with anacova. Critical thinking skills collected from students' worksheets and analyzed descriptively using categories: good (76 100% fairly good (51 75% less (26 50% and bad <25% The results show 1) guided inquiry based learning has effect towards learning outcome of cognitive products (F= 10,06; P= 0,0001) 2) guided inquiry based learning has effect towards learning outcome of cognitive process (F= 20,63; P= 0,0001) 3) students' critical thinking skills include formulate problems, formulate hypothesis, collect data, analyzed data, and make conclusion on average categorized as good enough.