Hardini Puspitaningrum
Study Program Of Biology Education, Faculty Of Mathematics And Science Education, Universitas Pendidikan Indonesia, Bandung City, West Java

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The effect of applying inquiry-based practicum method toward science process skills on topic related to pollen characteristics and embryogenesis stages of Capsella sp. Hardini Puspitaningrum; Eni Nuraeni
BIO-INOVED : Jurnal Biologi-Inovasi Pendidikan Vol 6, No 1 (2024): February 2024
Publisher : Master Program of Biology Education, Universitas Lambung Mangkurat, Banjarmasin, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bino.v6i1.17813

Abstract

Science process skills can be improved through direct experience in an inquiry-based practicum. In general, science process skills can include some activities, like observing, comparing, predicting, classifying, measuring, using tools, communicating, and interpreting data. This study aims to determine the effect of implementing a structured inquiry-based practicum on the pollen characteristics and embryogenesis stages of Capsella sp. in improving science process skills possessed by students. The samples in this study were students who took the plant development course, for a total of 31 people. This type of research is qualitative and descriptive. The data collection technique uses a questionnaire in the form of a response questionnaire and student opinion toward the implementation of the practicum, as well as the results of the practicum reports. The results showed that the students' science process skills belonged to the Very High category based on the questionnaire data, and the completeness level reached about 100% in the evaluation of practicum reports with a class average value of 85.86 in six indicators. Based on the results of the questionnaire data and practicum reports, it was concluded that the structured inquiry-based practicum activity in the plant development course can affect students' science process skills positively.Abstrak. Keterampilan proses sains pada peserta didik dapat ditingkatkan melalui pengalaman langsung dalam kegiatan praktikum yang berbasis inkuiri. Keterampilan proses sains secara umum dapat meliputi aktivitas, seperti observasi, membandingkan, memprediksi, mengklasifikasikan, mengukur, menggunakan alat, mengomunikasikan serta menginterpretasi data. Penelitian ini bertujuan untuk mengetahui pengaruh dari pelaksanaan praktikum berbasis structured inquiry pada materi karakteristik polen dan tahapan embriogenesis dari Capsella sp. dalam meningkatkan keterampilan proses sains yang dimiliki oleh praktikan. Sampel dalam penelitian ini adalah mahasiswa yang mengambil mata kuliah perkembangan tumbuhan dengan total sebanyak 31 orang. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Teknik pengumpulan data dilakukan dengan menggunakan kuesioner berupa angket respon dan tanggapan mahasiswa terhadap pelaksanaan praktikum, serta hasil laporan praktikum. Hasil penelitian menunjukkan bahwa keterampilan proses sains praktikan secara keseluruhan tergolong dalam kategori Sangat Tinggi berdasarkan data kuesioner, serta tingkat ketuntasan mencapai 100% pada penilaian laporan hasil praktikum dengan nilai rata-rata kelas mencapai 85,86 pada enam indikator. Berdasarkan hasil data kuesioner dan laporan praktikum, dapat disimpulkan bahwa kegiatan praktikum berbasis structured inquiry pada mata kuliah perkembangan tumbuhan dapat memberikan pengaruh positif terhadap keterampilan proses sains dari peserta didik.
Unveiling Heavy Metal Pollution in Soils and Rice Crops (Oryza sativa L.) Cultivation Nana Danapriatna; Moh. Dede; Millary Agung Widiawaty; Hardini Puspitaningrum; Ridwan Lutfiadi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.730-738

Abstract

The landscape changes through the increasing built-up areas (settlements and industrial) have a potential impact on reducing the quality of agricultural land. Waste from anthropogenic activities (industrial and domestic) is the main source of heavy metals that can affect rice production in the fields. This study examines the quality changes of paddy fields (Oryza sativa L.) polluted by wastewater in Muara Bakti Village, Bekasi Regency. Wastewater's impact on paddy fields is known through heavy metal contamination analysis in soil and rice plants. Chemical analysis of soil, water and plants was completed by the Balai Penelitian Tanaman Sayuran (Balitsa) Laboratory, West Bandung. The results showed that heavy metal levels such as lead (Pb) and cadmium (Cd) in the paddy soil samples were above the threshold in soil, respectively more than 25 mg/l and 0.01 mg/l. In contrast, the rice plant samples, it was identified as containing heavy metals such as Cd and chromium (Cr). Pb content was not detected in the rice plants. Soil in Muara Bakti Village contained optimal nutrients that are still suitable for agriculture. However, heavy metal content detected in soil samples and rice plants requires special handling to prevent endangering the agroecosystem and human health. Keywords: Agroecosystem, Heavy metals, Paddy fields, Soil pollution, Waste
Assessing Biology Education Students’ Self-Efficacy in Data Literacy: An Analysis of Their Confidence in Understanding Data Siswandari, Puti; Puspitaningrum, Hardini; Solihat, Rini
Biodidaktika : Jurnal Biologi dan Pembelajarannya Vol 20, No 2 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/biodidaktika.v20i2.31522

Abstract

Data literacy is an essential aspect in science and education, yet its integration in biology education remains underexplored. Competence in data literacy is essential for biology education students to conduct learning evaluation analyses that increase student learning performance. Grounded in Bandura’s social cognitive theory, this study investigates biology education undergraduates’ self-efficacy in data literacy during a statistics course. A convenience sample of 70 students completed a questionnaire assessing confidence (7 items), experience (4 items), and attitude (4 items) of data on a 5-point Likert scale. Additionally, students completed a data interpretation test (with biology-based data scenarios), rated their confidence on a 4-point Likert scale, and provided reasoning. Result revealed high levels of self-efficacy across all domains, consistent confidence during data interpretation tasks, and positive attitudes towards learning with data. The study contributes conceptually by linking perceived confidence and performance-based evidence of data literacy, highlighting implications for improving quantitative reasoning in biology education