Shobirin, Corebima, Lukiati –Critical Thinking Skills and Students Achievement ..... 15 15 Article received 22/09/2018; Approved 11/02/2019 Jurnal Pendidikan Sains Volume 7, Number 1, March 2019, pp. 15–19 Available online at http:/ / journal.um.ac.id/ index.php/ jps/ ISSN: 2338-9117/ EISSN: 2442-3904 Critical Thinking Skills and Students’Achievement on Biology Lesson Using Genetic Instructional Material Based on Learning Cycle 5E: A Correlation Study Muhammad Shobirin 1)* , AD. Corebima 2) , Betty Lukiati 2) 1) SMA Negeri 1-Balen Bojonegoro 2) Biologi Education Universitas Negeri Malang JL. Raya Sobontoro, Bojonegoro, East Java 62191, Indonesia E-mail: shobirin.muhammad83@gmail.com * Abstract: The aim of this research is to uncover correlation between critical thinking skills and student achievement and the contributions of critical thinking skills on student achievement through learning Biology using genetic teaching material that developed based on learning cycle 5E model. This research used correlational design. The population of this research was all of student grade XII-IPA at state senior high school. The sample were student of class XII-IPA3 that consist of 30 students. The result showed that there is correlation between critical thinking skills and student achievement in Biology learning using genetic teaching material that developed based on learning cycle 5E model with the regression equation Y = 0,511X–35,271. Based on the value R square analysis showed that critical thinking skills gives contribution 55,2% on student achievement. Key Words: critical thinking skills, student achievement, learning cycle 5E, genetic teaching materials Abstrak: Penelitian ini bertujuan untuk mengetahui hubungan keterampilan berpikir kritis dengan hasil belajar siswa SMA serta sumbangan keterampilan berpikir kritis terhadap hasil belajar dalam pembelajaran Biologi menggunakan bahan ajar genetika berbasis learning cycle 5E. Rancangan penelitian yang di- gunakan adalah penelitian korelasional. Populasi adalah seluruh siswa kelas XII IPA di SMA Negeri. Sampel adalah siswa kelas XII IPA 3 yang terdiri dari 30 siswa. Hasil penelitian menunjukkan bahwa ada hubungan antara keterampilan berpikir kritis dengan hasil belajar siswa pada pembelajaran Biologi menggunakan bahan ajar genetika berbasis learning cycle 5E dengan persamaan regresi hubungan kedua variabel adalah Y = 0,511X – 35,271. Berdasarkan nilai R 2 diketahui sumbangan keterampilan ber- pikir kritis terhadap hasil belajar siswa sebesar 55,2%. Kata kunci: keterampilan berpikir kritis, hasil belajar, learning cycle 5E, bahan ajar genetika INTRODUCTION C ritical thinking skill and its relationship to learn ing success have been interesting research topic in the last few decades (Stewart, 1999). Research results on various subjects and levels of edu- cation show a correlation between critical thinking skills and academic success. Jacobs (2012) reports that there is a significant correlation between the level of stu- dents’ critical thinking skills and the results of aca- demic tests in Mathematics learning using CAIS model (Clarification, Assessment, Inference, and Strategies). Gunawan (2013) reported his research on students taking science courses with results showing the con- tribution of critical thinking skills to learning achieve- ment of 21.53%. Daud and Hafsari (2015) also re- ported a relationship between critical thinking skills and learning outcomes in high school students in Ma- kassar. Research on the relationship between critical thinking and learning outcomes has also been carried out by several researchers relating to the implemen- tation of certain learning models. Wicaksono (2014) reported a significant relationship between critical thinking skills and cognitive learning outcomes in the application of reciprocal learning models with the magnitude of the contribution of critical thinking skills to cognitive learning outcomes of 41.99%. Anafiza