Students’ critical thinking skills are very important in the 21st century. Learning strategies can play a role in enhancing students’ critical thinking skills in the Nutrition and Health lecture. The results of a survey in 2013 showed that the implementation of learning strategies had not given students the opportunity to practice their critical thinking skills optimally. The new strategy, a combination of <em>PDEODE</em> and <em>STAD</em>, can be used to overcome the occurring problems. The purpose of this research was to determine the increase in students’ critical thinking skills in the nutrition and health lecture after they were taught using a combination of <em>PDEODE</em> and <em>STAD.</em> This was a pre-experimental research using a <em>one group pretest-posttest</em> research design<em>.</em> The samples of this research were one class consisting of 41 university students. The results of the test were analyzed with quantitative methods, by using statistical analysis, <em>paired samples T-test,</em> and to know the effectiveness using gain scores. The results showed that the significance was 0.000 (p &lt;0.05) and the gain score was 0.58. Thus, it can be concluded that the strategy of combining <em>PDEODE</em> and <em>STAD</em> can effectively improve the students’ critical thinking skills in the nutrition and health lecture.

The purpose of this study is to describe the perception and attitude of teachers on curriculum changes in Indonesia in view of high school Biology learning in Lamongan Regency. The research applied descriptive quantitative  research design. Research subjects’ number 40 high school biology teachers in Lamongan. Data was collected by online questionnaire with Google Form. Data were analyzed by percentage statistics. The results of this study showed that the perception and attitude of the teachers on curriculum changes related to the planning of learning implementation was 55% in high category. Meanwhile, the teachers’perception  on curriculum changes related to the learning process of Biology was  100% in moderate category. The perception of the teachers on curriculum changes related to the assessment of Biology learning was 87,5% in very high category. It can be concluded that the perception and attitude of teachers on curriculum changes were considered positive. However, it is suggested that the policy makers and the practitioners of education to improve the quality of Biology learning process  in accordance with the applicable curriculum. For other researchers to focus more on the perceptions and attitudes of teachers on curriculum changes in terms of the implementation of the biology learning process.

<p>Sampah adalah bahan yang tidak digunakan lagi yang berbentuk padat maupun cair.Sampah akan menimbulkan berbagai masalah jika tidak ditangani secara baik Sampah-sampah di laut merupakan salah satu sumber pencemaran laut dan sebagai penyebab global berbagai dampak ekologis. sampah anorganik merupakan sampah yang sulit membusuk,seperti botol dan gelas plastik minuman,kertas,kayu dan sebagainya Sampah organik ,sampah yang cepat membusuk,seperti kulit buah-buahan,sayuran,sisa makanan,buah-buahan,daun -daun kering.Sampah organik ini dapat diolah menjadi kompos.Pengomposan dapat dilakukan dengan menggunakan biourine.Tujuan dari pelatihan ini mengetahui bahaya sampah organik dan memanfaatkan sampah organik menjadi kompos dengan bamtuan biourine.Metode yang digunakan adalah sosialisasi bahaya sampah organik,pelatihan dan worshop.Kesipulan dari pelatihan ini dari tanggapan peserta pelatihan mengenai bahan yang digunakan dalam pelatihan banyak tersedia di lingkungan tempat tinggal mereka,terutama bahan EM4,tetapi mereka tidak tahu penggunaannya.Keunggulan pelatihan ini,kompos dari sampah organik dengan bantuan biourine dapat mempercepat pertumbuhan tanaman dan juga pupuk ini ramah lingkungan.Namun pupuk ini memiliki kekurangan yaitu proses pembuatanya membutuhkan waktu yang lama.</p>