Development of Constructivism-Based Student Worksheets on Free Radical Reaction Material

Authors

  • Okma Rahmatya Faculty of Teacher Training and Education, Universitas Riau, Pekanbaru, 28293, Indonesia Author
  • Susilawati Faculty of Teacher Training and Education, Universitas Riau, Pekanbaru, 28293, Indonesia Author
  • Maria Erna Faculty of Teacher Training and Education, Universitas Riau, Pekanbaru, 28293, Indonesia Author

DOI:

https://doi.org/10.31258/jes.3.2.p.162-173

Keywords:

Constructivism, Free Radicals, Organic Chemistry

Abstract

Organic   Chemistry   is   one   of   the   difficult   subjects, especially  in  reaction  and  strechochemical  mechanisms. One effort to reduce it is to utilize teaching materials. This study aims to develop organic chemistry teaching materials on free radical reaction material in the form of constructivism-based student worksheets (LKM). The research method used research and development research design with a 4D development model which consists of the stages of define, design, development, and disseminate. Development of LKM was assessed based on validity criteria  and  limited  trials.  The  validity  of  LKM  was achieved and assessed by three validators. Limited trials were  conducted  for  the  6th  semester  students  of  the chemical education study program totaling 15 people and also three organic chemistry lecturers to see the appropriateness of developed LKM from the lecturers' perspective. The overall LKM results of its validity showed that the LKM has 95.05% valid. The results of limited trials based on the responses of students and lecturers each obtained a percentage of 84.02% and 87.22%, respectively. Based on the results of validation and limited testing of constructivism-based LKM on the material of free radical reaction developed it is included in the category of valid and can be used in the learning process. 

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Published

2019-05-24

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Section

Articles