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All Journal Jurnal Biologi Tropis Thinking Skills and Creativity Journal
Susatyo, Ary
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Keefektifan Model Problem Based Learning terhadap Kemampuan Berpikir Kritis Tema Panas dan Perpindahannya Mahfudah, Salis; Susatyo, Ary; Widyaningrum, Ari
Thinking Skills and Creativity Journal Vol. 2 No. 1 (2019): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/tscj.v2i1.18378

Abstract

Tujuan yang hendak dicapai dalam penelitian ini adalah untuk mengetahui keefektifan model pembelajaran problem based learning terhadap kemampuan berpikir berpikir kritis siswa tema panas dan perpindahnnya SD Negeri Tlogomulyo Semarang tahun ajaran 2018/2019. Metode yang digunakan dalam penelitian ini adalah penelitian kuantitatif. Penelitian ini meruapakan penelitian pre-Experimental design dengan jenis One group pretest dan posttest design. Subyek penelitian adalah siswa kelas av sd negeri Tlogomulyo Semarang dengan jumlah 45 siswa. Berdasarkan hasil analisis menunjukkan bahwa pembelajaran menggunkan model problem based learning learning efektif terhadap kemampuan berpikir kritis tema panas dan perpindahannya siswa  kelas V SD Negeri Tlogomulyo Semarang. Dilihat dari rata-rata pretest yang awalnya adalah 48 dan setelah melakukan postest rata-rata nilainya adalah 83. Pada saat pretest dari 45 siswa tidak ada yang tuntas, setelah melakukan posttest ada 39 siswa tuntas dan 6 siswa belum tuntas. Hal tersebut diperkuat dengan hasil analisis akhir yang telah dilakukan dengan menggunakan uji t bahwa hasil  >  yaitu 23,865 > 1,671 diperoleh 23,865 dengan db=45-1=44 pada taraf signifikan  = 5% diperoleh indeks  = 1,671. Karena  >  maka  ditolak dan  diterima, sehingga dapat disimpulkan bahwa kemampuan berpikir kritis setelah menggunakan model problem based learning lebih baik sebelum menggunakan model pembelajaran problem based learning. Kata kunci : Model Problem Based Learning, Kemampuan Berpikir Kritis, Tema Panas dan Perpindahannya
The Effect of Growing Media Variations on Fruiting Body Number and Ash Content of Oyster Mushroom (Pleurotus ostreatus) Rakhmawati, Reni; Sulistyoningsih, Mei; Susatyo, Ary; Amelia, Steffy
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.12135

Abstract

Oyster mushroom (Pleurotus ostreatus) cultivation relies heavily on sawdust as the primary growing medium, while its availability is becoming increasingly limited, creating a need for alternative substrates derived from recycled materials. This study aimed to evaluate the effects of recycled-material-based growing media om the number of fruiting bodies and the ash content of oyster mushrooms. A quantitative experimental method was employed using a completely randomized design consisting of four treatments and four replications, resulting in 16 experimental units. The treatments were sawdust as the control (A0), used cardboard (A1), marga waste (A2), and a mixture of 50% used cardboard and 50% marga waste (A3). The observed parameters were the number of fruiting bodies and ash content. Data were analyzed using normality and homogeneity tests, followed by One-Way ANOVA and Duncan’s multiple range test at a 5% significance level. The results indicated that the growing media affected fruiting body production, with marga waste (A2) yielding the highest average number of fruiting bodies among all treatments. This effect was statistically significant (p = 0.027). In contrast, ash content showed relatively similar values across treatments and was not significantly affected by the type of growing medium (p = 0.226). In conclusion, marga waste demonstrated the greatest potential for increasing oyster mushroom productivity through enhanced fruiting body formation, while maintaining comparable ash content. These findings highlight the potential of marga waste as a sustainable and cost-effective alternative substrate for supporting environmentally friendly and economically viable oyster mushroom cultivation.
Co-Authors Amelia, Steffy Ari Widyaningrum, Ari Mahfudah, Salis Mei Sulistyoningsih Reni Rakhmawati