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Wesly Hutabarat, Wesly
Jurusan Kimia dan Prodi Magister Pendidikan Kimia Pascasarjana, Universitas Negeri Medan
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PENYUSUNAN BAHAN AJAR KIMIA INOVATIF MATERI LAJU REAKSI TERINTEGRASI PENDIDIKAN KARAKTER SISWA SMA Silaban, Ramlan; Septiani, Bronika; Hutabarat, Wesly
TABULARASA Vol 12, No 1 (2015): Jurnal TABULARASA
Publisher : TABULARASA

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Abstract

Penelitian ini bertujuan untuk memperoleh bahan ajar kimia yang inovatif yang terintegrasi pendidikan karakter pada subjek kurikulum laju reaksi berdasarkan 2013. Bentuk penelitian adalah penelitian deskriptif. Jenis penelitian termasuk dalam penelitian dan pengembangan. Subjeknya adalah laju reaksi bahan ajar subjek. Sementara itu, sampel yang digunakan dalam penelitian ini terdiri dari 20 guru kimia kelas XI di Kota Medan. Pemilihan sampel menggunakan teknik purposive sampling. Sebuah penerbit bahan ajar dianalisis berdasarkan kurikulum pada 2013 oleh profesor dan guru. Hasil analisis penerbit bahan ajar berdasarkan kurikulum tahun 2013 memperoleh rata-rata 2,54 berlaku, yang berarti bahwa itu pantas dan beberapa dari isi bahan ajar perlu direvisi. Bahan mengajar yang telah dikembangkan, dinilai oleh dosen dan guru. Penilaian dilakukan dengan 2 cara, yaitu berdasarkan kurikulum tahun 2013 dan BSNP (Badan Standar Nasional Pendidikan). Hasil analisis berdasarkan kurikulum tahun 2013 diperoleh rata-rata 3,60 adalah sarana yang sah sangat layak untuk digunakan dan tidak perlu direvisi. Hasil analisis berdasarkan BSNP diperoleh, aspek kelayakan isi 3,37 berlaku, itu berarti sangat layak dan tidak perlu direvisi, kelayakan bahasa 3,39 berlaku, itu berarti sangat layak dan tidak perlu direvisi, menyajikan kelayakan 3,44 berlaku, itu berarti sangat layak dan tidak perlu direvisi. Bahan mengajar yang telah disusun, kemudian diuji untuk siswa. Pengujian siswa dilakukan dengan menggunakan kelas 2 kelas, eksperimen dan kontrol. Terhadap kelas eksperimen siswa diberi kimia inovatif bahan ajar telah dikembangkan, sedangkan kelas kontrol menggunakan bahan ajar yang sudah ada sebelumnya. Nilai rata-rata kelas kontrol gain yang dinormalisasi adalah sama dengan 0,62, sedangkan nilai kelas eksperimen rata-rata gain yang dinormalisasi sebesar 0,76.
PENINGKATAN SIFAT MEKANIK DAN TERMAL KAYU KELAPA SAWIT DENGAN TEKNIK KOMPREGNASI REAKTIF ., Nurfajriani; Hutabarat, Wesly; ., Thamrin; Wirjosentono, Basuki; Gea, Saharman
JURNAL PENELITIAN SAINTIKA VOL 15, NO 2 (2014): JURNAL PENELITIAN SAINTIKA
Publisher : JURNAL PENELITIAN SAINTIKA

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Abstract

Characterization of Oil Palm Trunks (OPT) in height rod different OPT that compregnated with polystyrene resin modifications have been done, polystyrene resins modified with acrylic acid and benzoyl peroxide incorporated into the OPT pore size 15x2x2 cm3 shaped beam that is placed in the compregnator has been modified with -5 atm pressure for 15 minutes. Based on the tensile tests conducted showed that the optimum mechanical properties of the OPT on the bottom of the stem height. with the addition of 20% resin. Similarly, the thermal properties OPT marked increases with increasing temperature degradation of OPT compregnated modified polystyrene resin at a concentration of 20%. From the above two tests showed that OPT improved quality of prior treatment compregnation, analysis of thermal degradation by using Thermogravimetry
PENINGKATAN SIFAT MEKANIK DAN TERMAL KAYU KELAPA SAWIT DENGAN TEKNIK KOMPREGNASI REAKTIF ., Nurfajriani; Hutabarat, Wesly; ., Thamrin; Wirjosentono, Basuki; Gea, Saharman
JURNAL PENELITIAN SAINTIKA Vol 15, No 2 (2014): SEPTEMBER 2014
Publisher : JURNAL PENELITIAN SAINTIKA

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Abstract

Characterization of Oil Palm Trunks (OPT) in height rod different OPT that compregnated with polystyrene resin modifications have been done, polystyrene resins modified with acrylic acid and benzoyl peroxide incorporated into the OPT pore size 15x2x2 cm3 shaped beam that is placed in the compregnator has been modified with -5 atm pressure for 15 minutes. Based on the tensile tests conducted showed that the optimum mechanical properties of the OPT on the bottom of the stem height. with the addition of 20% resin. Similarly, the thermal properties OPT marked increases with increasing temperature degradation of OPT compregnated modified polystyrene resin at a concentration of 20%. From the above two tests showed that OPT improved quality of prior treatment compregnation, analysis of thermal degradation by using Thermogravimetry
PENINGKATAN SIFAT MEKANIK DAN TERMAL KAYU KELAPA SAWIT DENGAN TEKNIK KOMPREGNASI REAKTIF ., Nurfajriani; Hutabarat, Wesly; ., Thamrin; Wirjosentono, Basuki; Gea, Saharman
JURNAL PENELITIAN SAINTIKA Vol 14, No 2 (2014): SEPTEMBER 2014
Publisher : JURNAL PENELITIAN SAINTIKA

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Abstract

Characterization of Oil Palm Trunks (OPT) in height roddifferent OPT that compregnated with polystyrene resin modificationshave been done, polystyrene resins modified with acrylic acid and benzoyl peroxide incorporated into the OPT pore size 15x2x2 cm3 shaped beam that is placed in the compregnator has been modified with -5 atm pressure for 15 minutes. Based on the tensile tests conducted showed that the optimum mechanical properties of the OPT on the bottom of the stem height. with the addition of 20% resin. Similarly, the thermal properties OPT marked increases with increasing temperature degradation of OPT compregnated modified polystyrene resin at a concentration of 20%. From the above two tests showed that OPT improved quality of prior treatment compregnation, analysis of thermal degradation by using Thermogravimetry
Co-Authors Anggun C. Pardosi, Anggun C. Basuki Wirjosentono Bronika Septiani, Bronika Nurfajriani ., Nurfajriani Purwoko, Agus Ramlan Silaban Ribka Septiani Napitupulu, Ribka Septiani Saharman Gea Thamrin .