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Pengembangan LKPD Berbasis Open-Ended Kelas XI SMA pada Tahapan Pleminary Research Anggraini, Nova; Zulfah, Zulfah
MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Vol 2, No 2 (2020): MATHEMA
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jm.v2i2.729

Abstract

Penelitian ini merupakan penelitian pengembangan lembar kerja peserta didik dengan menggunakan model ADDIE. Subjek dalam penelitian ini adalah siswa kelas XI SMA/MA dan objek penelitian adalah LKPD matematika berbasis Open Ended. Penelitian yang penulis lakukan ini menghasilkan LKPD berbasis Open Ended yang valid, praktis, efektif dan mampu memfasilitasi kemampuan pemahaman konsep peserta didik SMA/MA. Jenis penelitian yang digunakan adalah penelitian pengembangan (research and development) dengan model penelitian yaitu model ADDIE. Tujuan dari penelitian pengembangan LKPD ini untuk memfasilitasi kemampuan pemahaman konsep peserta didik dan menjadi bahan ajar tambahan untuk pendidik. Hasil pengembangan LKPD diharapkan mampu memfasilitasi kemampuan pemahaman konsep peserta didik dalam proses pembelajaran matematika, memperkaya pengetahuan, dan dapat memotivasi peserta didik dalam mempelajari matematika.Kata Kunci: LKPD; Pendekatan Open Ended; Transformasi Geometri
Karakteristik Pertumbuhan Melada dan Lada Sambung Anggraini, Nova; Evizal, Rusdi; Septiana, Liska Mutiara
JURNAL AGROTROPIKA Vol 20, No 2 (2021): Oktober 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v20i2.5322

Abstract

Wild pepper of Piper colubrinum Link is used as rootstocks for grafted black pepper (Piper nigrum/Piper colubrinum) because its resistance to fungi that cause root rot disease. Grafted black pepper nurseries and plantations began to be developed by farmers in Lampung. This research aims to study the growth characteristics of wild pepper and grafted black pepper plants. The research was conducted in the field of wild pepper and grafted black pepper owned by farmers in Air Kubang Village, Air Naningan District, Tanggamus, Lampung, using survey method. Plant samples were determined randomly in the fields. The results showed that: (1) Wild pepper plants starts at the age of 1 year form plagiotropic branches with small diameters every 1-2 orthotropic branches, but slowly form orthotropic branches; (2) After the second pruning (of harvesting cuttings) 22% of the plants form orthotropic branches. The yield of pepper cuttings from the first to third harvests increased by 21-25% compared to the previous yield. In the third harvest, the production of cuttings reached 5066 cuttings (2 nodes) per 400 m2 land area or equivalent to 126,650 cuttings per ha of land harvested every 2 months; (3) At the age of 18 months, compared to non-grafted, grafted black pepper showed a greater greeness leaf index, larger stem diameter, larger plagiotropic branch diameter, higher number of orthotropic and plagiotropic branches, and 15.6% of grafted black pepper plants were flowering. Key words : Black pepper, cutting, flowering, growth, grafting, Piper colubrinum