JIPM (Jurnal Ilmiah Pendidikan Matematika) 8(2), 2020, 36-45 DOI : 10.25273/jipm.v9i1.7405 36 The Effect of Contextual Worksheets Assisted MEA Learning on Critical and Creative Thinking Ability I Wayan Puja Astawa, I G A. Sri Kusuma Sari, I Gusti Putu Sudiarta* Universitas Pendidikan Ganesha, Indonesia * agungsrikusumasari@gmail.com © 2020 JIPM (Jurnal Ilmiah Pendidikan Matematika) This is an open access article under the CC-BY-SA license (https://creativecommons.org/licenses/by- sa/4.0/) ISSN 2337-9049 (print), ISSN 2502-4671 (online) Abstract: The ability to think critically and creatively is needed in solving math problems. Secondary school students in Indonesia still possess these two abilities according to the results of PISA research. Therefore, learning studies that influence these two abilities are still feasible to do. This study aims to examine the effect of MEA learning with contextual worksheets on the ability to think critically and creatively in solving math problems. The study was a quasi-experimental study using a post-test only control group design. The research population consisted of 137 class X students of SMK Kharisma Mengwi, Badung Regency, Bali for the 2019/2020 school year, which was spread into five classes with equivalent math abilities. A random sampling technique determined a sample of 2 classes. Data on the ability to think critically and creatively in solving mathematical problems were collected using a test in the form of a description. Data were analyzed using the MANOVA test. The results of the analysis show that MEA learning with contextual worksheets has a positive effect on the ability to think critically and creatively in solving math problems (F = 90.018; p <0.05). Keywords : MEA; Worksheets; contextual; critical thinking; creative thinking; problem-solving Introduction Thinking skills are one of the skills of students developed at school. Thinking is a mental activity to manipulate or manage and transform information into memory (Santrock, 2011). Thinking can be divided into critical thinking and creative thinking. Critical thinking is related to the ability to carry out assessments to make conclusions based on valid evidence (Costa & Kallick, 2008; Eggen, Wahono, & Kauchak, 2012). Meanwhile, creative thinking is related to the ability to find something new (Daryanto, 2009; Sudjana, 2009; Yeni, 2010; Yunianta, Rusilowati, & Rohmad, 2012). Critical and creative thinking is essential in problem-solving because according to Aljaberi & Gheith (2015). Problem-solving is one of the most important cognitive activities and JIPM (Jurnal Ilmiah Pendidikan Matematika) Journal homepage: http://e-journal.unipma.ac.id/index.php/jipm