Guided Discovery Learning Based on Internet and Self Concept: Enhancing Student's Critical Thinking in Biology

In 21 st century critical thinking is needed on deciding what to believe or do. It can be learnt and developed in learning process which giving the students opportunity to be active in exploring the answer of the question and learning context sustainably. The research method is quasi experiment with factorial design by level 2x2. Both experiment and control class applied Guided Discovery Learning adjust with 2013 curriculum. The difference experiment classes conducted it based on internet, control class based on textbook. The research subjects were the students of class VII South Tambun Six State Junior High School, experiment and control classes each consisted of 118 students.