TY - JOUR AU - Ismono, Ismono AU - Poedjiastoeti, Sri AU - Suyatno, Suyatno PY - 2018 TI - The development of teaching material of concept maps based on inquiry as an effort to trained high-order thinking skills of chemistry education students JF - Proceedings; Vol 1 No 1 (2017): Proceeding IJCST 2017 KW - N2 - Higher order thinking skills (HOTs) are needed by the students of chemistry education, because they will become teachers who will be able to teach HOTs to the students. Teaching materials on selected learning tools are isomers (structural and stereochemistry isomers) because these subject matter are rich concepts with abstract characteristics and interrelated concept - concept, so to study it required the ability to higher order thinking, Such as the ability to analyze, evaluate, and synthesize (create). This research is in the form of research of development of teaching material of concept map based on inquiry with the subject research of 5 experts (content validation) and 30 students of chemical education year 2015 (empirical validation). The purpose of this research is to know the role of teaching material in: (1) to increase student's of HOTs and (2) ability to retention of HOTS. The results showed that the teaching material to developed: (1) has the effectiveness, because capable of improving learning achievement and higher level thinking skills shown by the increasing score gain in the category of medium to high; (2) The students had relatively good HOTs retention capability after retention test within two months after post test UR - https://ojs.pnb.ac.id/index.php/Proceedings/article/view?path=