Abstract
This research is aimed to 1) develop simple sciences instrument device based on a guided inquiry to improve the skill of the students on critical thinking. 2) to know the appropriateness of physic instrument based on guided inquiry.3) to know increase critical thinking skill by using the appropriateness of this instruments. This research is research and development with 4D models. The average score in an aspect based on the whole result of the assessment by media expert is 99,33%, the material expert is 88,20%, peer reviewer 83,02%, and science teacher upon the simple props is 88,41%, then it can be stated as Good (B). There is an improvement in the student’s result when doing pretest and posttest. The average score of the students when doing pretest is 5,29, and posttest is 7,9. The level of critical thinking skill of the students is on the level medium because the criteria are 0,54.
Highlights
Development of science and technology so quickly demanded the teacher to more creative and skilled in order for students to have the competitiveness and to deal with changes in life in a world that is always evolving
Props is assessed from a variety of input from media experts and expert material is used to fine-tune the Science props simple so that the resulting product revision I of science simple props
Based on the results and discussion of the research can be concluded that this development has produced simple props based guided inquiry for students of grade VIII junior high school
Summary
Development of science and technology so quickly demanded the teacher to more creative and skilled in order for students to have the competitiveness and to deal with changes in life in a world that is always evolving. Education is one of the very important factors in the role of quality so manifest a human able to deal with the development of science and technology. Education was seen as a means to give birth to a character, healthy, intelligent, creative, skilled, responsible, productive, and ethical sublime. A conscious effort and planned to bring about an atmosphere of learning and the learning process so that students are actively developing the potential in him. Attempts to form an intelligent human/learned and quality, as well as good personality, is part of the educational mission of the professional responsibility of every teacher. As according to Poedjiadi in Lestari (2013) says that the learning process of transferring the science, and capable of assisting the process of understanding the subject matter through the selection of the model as well as the use of appropriate learning with media the development of science and technology at this time
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