出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：The problem of the research and development was the low ability of critical thinking students and the worksheet used during learning does not support the ability of critical thinkinh of 5th hrade Elementary School in north Raman. This reasearch and development to develop worksheet based on PBL that is feasible and efective in improving students critical thingking skill. The reaseacrh method used the desugn of Borg & Gall. The populationn of this reasearch is the students of 5th grade Elementary School in north Raman. The reasearch sampel was determined by purposive sampling technique wa 20 students’ in 5th grade class A of Elementary School Raman Endra. The woksheet was validated by media expert, material expert, language expert, and practitioner. Data Cpllector uses as valid and reliable pbjective test instrument. The data analyzed by using N-Gain. The result showed that the worksheet was feasible to use and effectively improved student critical thinking skill..
