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All Journal KALAM CENDEKIA PGSD KEBUMEN BIOGENESIS
Nur Ngafifah
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Other

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PENGGUNAAN MODEL OPEN ENDED LEARNING UNTUK MENINGKATKAN PEMBELAJARAN MATEMATIKA SISWA KELAS IV SEKOLAH DASAR Ngafifah, Nur
KALAM CENDEKIA PGSD KEBUMEN Vol 5, No 4 (2017): KALAM CENDEKIA PGSD KEBUMEN
Publisher : KALAM CENDEKIA PGSD KEBUMEN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (88.753 KB)

Abstract

Abstrak: Penggunaan Model Open Ended Learning untuk Meningkatkan Pembelajaran Matematika Siswa Kelas IV Sekolah Dasar. Penelitian ini bertujuan untuk: 1) mendeskripsikan langkah-langkah pembelajaran Open Ended Learning, dan 2) mendeskripsikan peningkatan pembelajaran matematika tentang bilangan bulat menggunakan Open Ended Learning. Penelitian ini adalah penelitian tindakan kelas kolaboratif yang dilaksanakan dalam tiga siklus. Hasil penelitian ini menunjukkan bahwa: 1) penggunaan model Open Ended Learning menerapkan langkah-langkah: orientasi, penyajian masalah, pengerjaan masalah secara individu, diskusi kelompok, presentasi hasil diskusi, dan penutup; 2) penggunaan model Open Ended Learning dapat meningkatkan pembelajaran matematika tentang bilangan bulat terbukti dari persentase ketuntasan hasil belajar siswa pada siklus I 67,5%, siklus II 91,1% dan siklus III 100%.Kata Kunci: Open Ended Learning, pembelajaran, Matematika
PENGARUH PEMBERIAN GIBERELIN PADA MEDIA VACIN DAN WENT TERHADAP PERKECAMBAHAN BIJI ANGGERIK BULAN (Phalaenopsis amabilis Bl) SECARA IN VITRO Yusnida Bey; Wan Syafii; Nur Ngafifah
Biogenesis Vol 1, No 2 (2005)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.283 KB) | DOI: 10.31258/biogenesis.1.2.57-61

Abstract

In vitro investigation has conducted in order to find out the respons of orchid (Phalaenopsis amabilis BI) in Vacin and Went media by Gibberellins treatment, this research was carry out at Balai Benih Tanaman Pangan dan Holtikultura Pekanbaru during June until August 2003 by using completely Random Design through 5 treatment and 4 replication. The treatment were Gibberellins (ppm): 0, 2, 4, 6 and 8. The parameter were observed i.e ; the emergence timing of protocorm like bodies, seedling height, and seedling biomass. Observated data were analyzed descriptifely and analysis of variance with Duncan Multiple Range Test at 5% level of significance. The results shows that the 2 ppm GA3 treatment have a good effect on the emergence timing of protocorm like bodies (13-16 days after planting), average of seedling height (1,5 cm) and seedling biomass (1,18 gr). We concluded that the timing of orchid seedling emergence could be accelerated by increasing the concentration GA3 treatment until 2 ppm.     Key words:  Seed of orchid, Gibberellins,  In vitro, Germination, Phalaenopsis amabilis Bl
Co-Authors Wan Syafii Yusnida Bey