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Konstanta: Jurnal Matematika dan Ilmu Pengetahuan Alam
Published by Universitas Katolik Widya Karya Malang
ISSN : xxxxxxxx     EISSN : 29875374     DOI : 10.59581
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Materials Science & Nanotechnology
Sub Rumpun Ilmu IPA: 1. Fisika 2. Kimia 3. Biologi (dan Bioteknologi Umum) 4. Bidang Ipa Lain Yang Belum Tercantum Sub Rumpun Ilmu MATEMATIKA: 1. Matematika 2. Statistik 3. Ilmu Komputer 4. Bidang Matematika Lain yang Belum Tercantum Sub Rumpun Ilmu KEBUMIAN DAN ANGKASA: 1. Astronomi 2. Geografi 3. Geologi 4. Geofisika 5. Meteorologi 6. Bidang Geofisika Lain yang Belum Tercantum
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 62 Documents
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Inventarisasi Tumbuhan Famili Apocynaceae Di Komplek Cipadung Permai Kota Bandung Haikal Azmi; Hanna Kamillah Suwarna; Ateng Supriatna
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1243.319 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.802

Abstract

Apocynaceae is a family of plants with characteristics of producing white rubber, having leaves face-to-face or circular, large flowers of striking colors, slightly fragrant scents, as well as crowns The flower consists of five parts. The family has 155 tribes and more than 2,000 species. The Permai complex is a residential complex located in the town of Bandung. Family inventory Apocynaceae is carried out in the area of the Permai complex plant, considering the plants of this family have various benefits. The method used is the exploration and line transect method. This is done by comparing the morphology of plants with references on the Internet. From Results 3 individuals of Allamanda cathartica L and 8 individuals of the species Catharanthus were found.
Inventarisasi dan Identifikasi Tumbuhan Famili Cyperaceae di Sekitar Laboratorium Terpadu UIN Sunan Gunung Djati Bandung Riana Qodariah Hasanah; Rini Rini; Ateng Supriyatna
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1565.382 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.803

Abstract

The Cyperaceae family is a puzzle or "papayungan" family. The Cyperaceae family are weeds because they can grow in different environmental conditions. Many species of this family grow in terrestrial and near-water ecosystems. Plant inventory is an activity that aims to classify a plant species found in an area. This activity is carried out to provide information which is used as a reference for the species of this family that exist in the area, with the aim of knowing the distribution of the species of this family and identifying them. This observation uses the exploration method around the UIN Sunan Gunung Djati Bandung Integrated Laboratory. The Cyperaceae family around the UIN Sunan Gunung Djati Bandung Integrated Laboratory obtained 3 species, namely the species Cyperus rotundus L, Cyperus kyllingia Endl, and Fimbristylis globulosa.
Inventarisasi Tumbuhan Famili Fabaceae di Jalur Hutan Kota Babakan Siliwangi Bandung, Jawa Barat Futri Assyifa; Habib Indraswara; Ateng Supriatna
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1617.534 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.806

Abstract

Plants are a group of living things that have many cells on earth. Plants have three parts, namely roots, stems and leaves. Babakan Siliwangi has been designated as the lungs of the city and a recreational area in Bandung by Unesco. Having an area of ​​3.8 hectares filled with various animals that complement the ecosystem, Babakan siliwangi has become a Green Open Space (RTH) that can be reached by the people of Bandung City. The Fabaceae family is one of the third largest families which belongs to the members of closed seed plants (Angiosperms) which are easily found in the surrounding environment which have a variety of morphology or stature ranging from herbs, seedlings, shrubs and trees.
Pengaruh Metode Thinking Aloud Pair Problem Solving (TAPPS) Terhadap Kemampuan Komunikasi Matematis Siswa SMP Ikhlasiyah Palembang Adelia Muharpriliana; Yuli Fitrianti; Feli Ramury
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (797.047 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.813

Abstract

This study aims to determine the effect of the Thinking Aloud Pair Problem Solving (TAPPS) method on students' mathematical communication abilities. The type of research used is a Quasi-Experimental type (pseudo-experimental) and uses the True Experimental Design research design with the Posttest-Only Controll form. The research was conducted at SMP Ikhlasiyah Palembang with a population of all students of class VII consisting of 2 classes. The sample were taken from all members of all population so that class VII.1 as the experimental class was given treatment, namely the Thinking Aloud Pair Problem Solving (TAPPS) method and class VII.2 as the control class which was not given treatment, namely the conventional method. Research data was collected through tests. Based on the analysis of the test results, it shows that the students' mathematical communication skills in the experimental class are higher than those in the control class. This means that the class that was treated with the TAPPS method affected students' mathematical communication skills. Statistical calculations obtained from the test results yield tcount = 2.944 and ttable = 2.013, so that tcount > ttable which causes H0 to be rejected and H1 to be accepted. Thus, it can be concluded that there is an influence of the Thinking Aloud Pair Problem Solving (TAPPS) method on the mathematical communication abilities of class VII students of SMP Ikhlasiyah Palembang.
Analisis Kekerabatan Tanaman Famili Fabaceae Berdasarkan Karakteristik Morfologi di Kecamatan Jatinangor, Kabupaten Sumedang Salma Rahmah; Sandy Setiawan
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1083.412 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.814

Abstract

Indonesia is a country with very high biodiversity both in flora and fauna groups so that Indonesia is nicknamed the "Megabiodiversity" Country. The flora group has high diversity so that it always provides space for continuous study. This can be continued from the provincial, district to sub-district levels. Like one of the provinces in the western part of Indonesia, namely West Java. This province has a wealth of flora that is spread to every corner, including in one of the areas directly adjacent to West Bandung district, known as Jatinangor District. Jatinangor District is one of the areas in Sumedang Regency which is currently in a transitional period towards urban areas. The transition period is certainly a study that needs to be considered because it will impact on the richness of the flora in the region. One group of plants that still survives and is quite often found in Jatinangor District is the Fabaceae or legume family. Fabaceae is a group of plants that ranks third largest (after Orchidaceae and Asteraceae). This plant belongs to the Angiospermae division or plants that have flowers. This family is interpreted as having around 730 genera and 19,400 species with the largest genus being Astragalus (has more than 2000 species), then Acacia (more than 900 species), then Indigofera (more than 700 species), then Crotalaria (600 species), and finally Mimosas (500 species). Fabaceae itself is grouped into 3 subfamilies, namely Mimosoideae, Caesalpinioideae and Papilionoideae. ), and Soybean (Glycine max L). Soybean is the main crop grown with quite a lot of results and uniform size. In addition, there are differences in habitus, leaf shape, and leaf surface between the three types of plants. The variation in the number of samples also indicates the diversity of plant populations in the Fabaceae family at the study site.
Mengembangkan Kecerdasan Finansial Dengan Matematika Keuangan M. Yusuf; Muhamad Fajar Romadhan; Mohammad Lukman Toro; Achmad Maulana; Bardan Salsabil; Nurma Tambunan
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.652 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.826

Abstract

Financial intelligence is an individual's ability to understand, manage, and optimize the management of personal finances. Financial mathematics is becoming an important tool in developing financial intelligence. In this research using literature study method this method involves the search and collection of information from related literature sources. Through financial mathematics, one can calculate the future value of an investment, estimate the return on an investment, calculate annuity payments, understand the concept of time value of money, and analyze investment risk. The application of financial mathematics in financial intelligence provides an advantage in taking better financial decisions and managing finances effectively. By utilizing financial mathematics, one can improve their understanding of Finance, make effective financial planning, and take better financial decisions.
Pengembangan Instrumen Tes Berbasis Etnomatematika Untuk Melatih Kemampuan Pemecahan Masalah Siswa Sekolah Menengah Pertama Ririn Qomariyah; M. Zainudin; Ima Isnaini Taufiqur Rohmah
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1360.179 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.837

Abstract

Penelitian ini bertujuan mengembangkan instrumen tes berbasis etnomatematika untuk melatih kemampuan pemecahan masalah siswa SMP yang valid, praktis serta efektif diterapkan dalam pembelajaran. Penelitian ini menggunakan jenis penelitian pengembangan (Research and Development) dengan model pengembangan Tessmer tipe formative evaluation yang meliputi 4 tahapan yaitu : (1) tahap preliminary, (2) tahap self evaluation, (3) tahap prototyping, dan (4) tahap field tes. Berdasarkan uji validitas, instrumen tes berbasis etnomatematika dinyatakan valid dengan koefisien validitas sebesar 0,99. Hasil uji reliabilitas diperoleh skor total 0,90 yang berarti reliabilitas instrumen tes termasuk pada kategori sangat tinggi. Hasil uji tingkat kesukaran tergolong sedang dengan perolehan skor rata-rata 0,61. Hasil uji daya beda diperoleh skor akhir 0,25 yang berarti instrumen tes termasuk kategori cukup dalam artian dapat membedakan siswa yang memiliki kemampuan pemecahan masalah tinggi dan rendah. Hasil uji tingkat kepraktisan menunjukkan hasil positif dengan perolehan rata-rata angket guru dan siswa sebesar 86%. Hasil analisis data kemampuan pemecahan masalah diperoleh skor akhir 61,3% dengan kategori baik. Hasil uji tingkat keefektifan diperoleh persentase 62,5% sehingga dapat disimpulkan instrumen tes yang dikembangkan memenuhi tingkat keefektifan dengan kategori baik.
Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Student Teams Achievement Division (STAD) Pada Materi Sistem Pernapasan Manusia Kelas XI SMAN 1 Labuhan Deli T.A. 2022/2023 Adelia Putri; Wasis Wuyung Wisnu Brata
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1208.587 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.839

Abstract

This study aims to design and produce Student Worksheets (LKPD) based on the Student Teams Achievement Division (STAD) on class XI human respiratory system material. This type of research is Research and Development (Reasearch & Development) with the ADDIE model (Analysis, Design, Development, Implementation and Evaluation). The subjects of this study were 2 material expert validator lecturers and 2 learning expert validator lecturers, the assessment of 1 biology teacher, and the responses of class XI MIPA-3 students of SMAN 1 Labuhan Deli T.A. 2022/2023. Data analysis used quantitative and qualitative descriptive analysis. The results showed that the development of STAD-based LKPD obtained validation results by material experts of 96.88% in the "very feasible" category, validation by learning experts of 90.13% in the "very feasible" category, assessment by biology teachers of 93.42 % in the "very feasible" category, the student response was 94.96% in the "very feasible" category, and the results of the effectiveness test obtained an N-gain score of 0.72 which was included in the "high" category and was considered effective in being used in the learning process biology in the material of the human respiratory system.
Pengembangan Penuntun Praktikum Kimia Berbasis Lingkungan Pada Materi Asam Basa Adelia Raya Fataanissa; Lamtiar Ferawaty Siregar; Jesi Jecsen Pongkendek
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1070.696 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.844

Abstract

Penelitian ini bertujuan untuk menghasilkan produk berupa buku penuntun praktikum kimia berbasis lingkungan pada materi asam basa. Penelitian pengembangan dengan menggunakan model ADDIE yaitu Analyze, Design, Development, Implementation, dan Evaluation. Validasi dilakukan oleh validator produk, respon guru dan observer keterlaksanaan. Uji coba dilakukan terhadap 20 peserta didik. Berdasarkan analisis data dapat diambil kesimpulan bahwa penuntun praktikum kimia berbasis lingkungan dinyatakan valid oleh validator produk (rerata 83%), dinyatakan sangat praktis dilihat dari hasil respon guru (rerata 94%) dan dilihat dari observer keterlaksanaan (83%). Keefektifan dilihat berdasarkan hasil post-test (rerata 75%) dan angket respon peserta didik (rerata 87%). Buku penuntun praktikum kimia dinyatakan valid, praktis dan efektif untuk digunakan.
Keefektifan Media Pembelajaran Geogebra Dalam Memecahkan Persoalan Matematika Mulyadi Mulyadi; Risky Marchel Tanjung; Azira Wina Kusuma; Fadya Levia Azahra; Tiara Sekar Maharani; Dilah Nur Fadilah
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 2 (2023): Juni : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (925.773 KB) | DOI: 10.59581/konstanta-widyakarya.v1i2.860

Abstract

The purpose of this research is to analyze the effectiveness of Geogebra learning media in solving math problems among students. The method used in this study is the literature review method with a qualitative approach, which involves a literature review of library sources such as books, articles, journals. Data collection techniques were carried out by conducting literature studies and distributing questionnaires and test questions given to 10 students from class 4C in the 4th semester of Mathematics Education at Indraprasta University PGRI, who were considered to represent the entire research subject. The data analysis technique uses descriptive analytic by collecting data then compiling, analyzing and drawing conclusions. The results of this study indicate that Geogebra is less effective in solving mathematical problems due to lack of knowledge about Geogebra and low interest in using Geogebra.

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