Critical thinking skills are referred to as one of the 21st-century skills. These skills should be empowered through Biology learning. This study aims to analyze the improvement of biology-critical thinking skills in students who are taught through the CIRC learning model based on the scientific approach (Cirsa). Critical thinking skills are measured by tests developed by researchers and validated by theoretical biologists. The instrument includes indicators of critical thinking skills such as formulating problems, giving arguments, making deductions, conducting inductions, conducting evaluations, and deciding and implementing. This study used a quasi-experimental method with a pretest-posttest non-equivalent control group design. This study involved 160 students (M = 95, F = 65) of 8th grade of a Madrasah Tsanawiyah School in Bogor. The findings of this study show that students who are taught by Cirsa have higher Biology-critical thinking skills than those by conventional learning. In conclusion, Cirsa learning was recommended to develop or enhance students' critical thinking skills related to biological concepts.
Jakarta merupakan wilayah perkotaan di Indonesia yang memiliki banyak permasalahan lingkungan. Kesadaran lingkungan diperlukan dalam upaya untuk menyelesaikan permasalahan lingkungan. Kesadaran lingkungan dalam diri siswa dapat dibentuk oleh tingkat pengetahuan lingkungan. Program sekolah berbasis lingkungan dilaksanakan melalui program Adiwiyata. Tujuan program Adiwiyata untuk mendorong dan menciptakan sekolah yang peduli tentang lingkungan dan memiliki budaya lingkungan. Penelitian ini bertujuan untuk mengetahui hubungan pengetahuan lingkungan hidup dengan kesadaran lingkungan pada siswa sekolah Adiwiyata. Penelitian ini dilaksanakan di SMAN 26 dan SMAN 65 Jakarta pada Semester I Tahun Ajaran 2018/2019. Metode yang digunakan yaitu metode deskriptif kuantitatif melalui studi korelasional. Sampel yang digunakan sebanyak 124 siswa menggunakan teknik Simple Random Sampling. Alat pengumpulan data menggunakan tes pengetahuan lingkungan hidup dan instrumen kesadaran lingkungan. Analisis uji prasyarat menunjukkan data berdistribusi normal menggunakan uji Kolmogorov-Smirnov dan homogen menggunakan uji Bartlett. Hasil penelitian menunjukkan bahwa terdapat hubungan positif dan signifikan antara pengetahuan lingkungan hidup dengan kesadaran lingkungan siswa dengan koefisien korelasi sebesar 0,298. Hal tersebut berarti jika skor pengetahuan lingkungan hidup tinggi, maka skor kesadaran lingkungan juga tinggi. Pengetahuan lingkungan hidup memberikan kontribusi terhadap kesadaran lingkungan siswa sebesar 8,89%.
Green consumerism has been considered as one of promising movement in maintaining the environmental quality. This research aimed to describe the students’ pro-environmental behavior (PEB) as considerable as there learning outcome based on green consumerism. This survey research was conducted in State Junior High School 1 of South Tambun, Bekasi, West Java on July-August 2018. The sampling technique used was simple random sampling with 256 students. The subject was divided into two groups: 128 students from seventh grade who had not received environmental learning materials and 128 students from eighth grade who had received environmental learning materials. The data analysis used in this study was an independent t-test. The results of the t-test showed that there was no significant difference of PEB achievement between the two groups. In addition, notwithstanding that the average of the students’ environmental learning outcomes was 72.76, but there was as high as 78.60% of students’ achievement was classified below the standard value. Thus, teachers should evaluate the environmental materials used. It is expected that Biology subjects on environmental material can accommodate green consumerism concepts.
<div align="center"><table width="645" border="1" cellspacing="0" cellpadding="0"><tbody><tr><td valign="top" width="439"><p><strong>Abstract:</strong> The ability to think creatively and problem solving is the ability that students must have in 21st century. The purpose of this research was to determine the relationship between creative thinking skills and students' problem solving abilities in environmental change material. The research method used is descriptive correlational method. The research was conducted at High School 4 Bekasi in semester of the 2018/2019 academic year. The sample was taken through simple random sampling technique as many as 138 students. The results showed a correlation coefficient between the ability to think creatively with students' problem solving abilities of 0.825. The conclusion of this study is that there is a positive relationship between the ability to think creatively with students' problem solving skills.</p><p class="Abstract"><strong>Abstrak:</strong><em> </em>Kemampuan berpikir kreatif dan pemecahan masalah adalah kemampuan yang harus dimiliki siswa untuk menghadapi tantangan abad ke-21. Tujuan penelitian ini untuk mengetahui hubungan antara kemampuan berpikir kreatif dan kemampuan pemecahan masalah siswa pada materi perubahan lingkungan. Metode penelitian yang digunakan adalah metode deskriptif korelasional. Penelitian dilaksanakan di SMA Negeri 4 Bekasi pada semester ganjil tahun ajaran 2018/2019. Sampel diambil melalui teknik simple random sampling sebanyak 138 siswa. Hasil penelitian menunjukkan koefisien korelasi antara kemampuan berpikir kreatif dengan kemampuan pemecahan masalah siswa sebesar 0,825. Kemampuan berpikir kreatif memberikan kontribusi sebesar 68% terhadap kemampuan pemecahan masalah siswa. Kesimpulan dari penelitian ini adalah terdapat hubungan positif antara kemampuan berpikir kreatif dengan kemampuan pemecahan masalah siswa.</p></td></tr></tbody></table></div>
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