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Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi
Published by Universitas Islam Negeri Sumatera Utara
ISSN : 26213702     EISSN : 26217538     DOI : 10.30821
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Arjuna Subject : -
Articles 10 Documents
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Search results for , issue "Vol 6, No 1 (2023): June" : 10 Documents clear
Practicality test of HOTS-based worksheet on evolution topic for high school students Nurhidaya Nurhidaya; Adnan Adnan; Abd. Muis
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.1641

Abstract

Initial studies on the use of high school student’s worksheets based on higher order thinking skills (HOTS) in learning biology showed that HOTS content in the worksheet used by teachers is still low. Based on this, HOTS-based worksheet on evolution material has been developed. The type of research is a development research by using ADDIE model. The practicality test of HOTS-based worksheet was carried out at SMA Negeri 4 Wajo, South Sulawesi in March 2022, with 2 biology teachers and 30 students of grade 12th. The data collected through some instruments such as the observation sheet for the implementation of the worksheet and the questionnaire for students and teacher’s response. The criteria for HOTS-based worksheet are declared practical if the minimum value of the percentage of product implementation obtained is 71.00%, and the average percentage of respondents through questionnaires is ≥70.00%. Generally, product implementation through the observation sheet was 84.46% (very well implemented category); teacher responses to the practicality of the worksheet was 85.83% (very positive response category); and student responses was 85.94% (very positive response category). Refer to the research results, it can be concluded that the worksheet has met the practical criteria.
The implementation of STAD model assissted worksheets to improve students’ activities and understanding in learning biology Sondang Rosita Indah Togatorop; Samuel Benny Dito
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.1368

Abstract

This study aims to apply the Student Teams-Achievement Division (STAD) learning model assisted student worksheet to increase learning activities and understanding of concepts in biology, especially the principle of trait inheritance material. Class action research consisting of two cycles, each cycle consisting of three encounters is used in this research method. Research instruments are in the form of pre-cycle questionnaire sheets, learning outcomes evaluation sheets, student activity observation sheets, and teacher activity observation sheets. Evaluation sheet of learning outcomes to determine the improvement of understanding of concepts in the material of the principle of inheritance of traits. Student and teacher activity sheets are used to view the interactions that occur between teachers and students.  Descriptive statistics are used in the analysis data to see student learning outcomes and increased student activity. The results of the study concluded that the understanding of student concepts and the increase in learning activities. The percentage of learning activities in cycle I and cycle II respectively averaged 50.95% and 81.21%. The percentage of learning outcomes in cycle I and cycle II respectively averaged 64.61% and 84.31%. The percentage of students who completed cycle I and cycle II respectively was 44.44% and 80.56%. So it can be concluded that the learning with STAD model assisted worksheets can improve students’ activities and understanding on the material of the principle of inheritance of traits.
Development of android-based learning media on tool sterilization materials Fauziyah Harahap; Wilhelminari Br Saragih
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.2115

Abstract

According to the analysis of student needs for sterilization material for tissue culture courses, it shows that learning media still has a limited role in the learning process. In terms of material and visualization, the learning media used cannot be explained in detail. Students still don't understand the material and really need Android-based learning media that is more flexible and well visualized. The purpose of this study was to find out the analysis of student needs, the design of instructional media, the level of feasibility of learning media from experts and the responses of lecturers and students as well as evaluations of students. The research method used is R&D, ADDIE Model (Analysis, Design, Development, Implementation, and Evaluation). The results of the study were 96.70% of students needed Android-based learning media, media content designs namely: Instructions for Use, CP-MK, References, Materials, Videos, Exercises, Developer Profiles and EXIT. The feasibility level of the media is categorized as very feasible, the results of material experts are 100%, media experts are 96.5% and learning design experts are 94.5%. then the lecturer response was 83% and the student response was 92.52% included in the very decent category. then the evaluation stage obtained an n-gain score of 0.60 categorized as quite effective. The limitation of the research problem is that the material developed is limited to the topic of tool sterilization for tissue culture courses and the development used is limited to the evaluation stage, namely the media effectiveness testing stage.
Morphological and phenological characteristics of petunia (Petunia hybrida Vilm.) flowering Asri Ferianti Sareh; Pinta Murni; Ervan Johan Wicaksana
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.1968

Abstract

Petunia hybrid Vilm. is an ornamental plant that has the potential to be developed because its flowering period does not know the season and comes with various motifs and flower colors that can add cultivation and commercial value. Information on the morphological characteristics of flowers and flowering phenology is the basis for their development. The aim of this study was to characterize the morphological structure of flowers and observe a series of phases in flower development stages associated with environmental factors. This research was conducted in the sustainable twin housing complex in the city of Jambi on March 25–May 27, 2022, and the data obtained was analyzed descriptively, qualitatively, and quantitatively. The results of flowering phenology observations showed that petunia flower development occurred over an average period of 37 days. Based on the characterization of the morphological structure of the flower, the average length is 72 mm and the diameter is 42 mm. It is categorized as a complete flower because it has a main organ consisting of five petals with an average diameter of 42 mm, five petals with an average length of 14 mm, and an average diameter of 16 mm. Furthermore, the genitals of the flower, namely the stamens, are five in number, and there is one pistil in each flower.
Herbarium book: Learning media in medicinal plants lecture Nining Nuraida; Suraida Suraida; Nurlinda Nurlinda; Try Susanti
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.2185

Abstract

This study aims to (1) determine the types of medicinal plants used in Teluk Kayu Putih village, (2) describe the development of the herbarium book media for medicinal plants lecture,   (3) determine the validity and (4) the readability test of the herbarium book of medicinal plants as a learning media. The ADDIE development model research consists of 2 stages of research. The first stage of qualitative research is to obtain data on the types of medicinal plants in Teluk Kayu Putih Village. The second stage of media development is making a herbarium book. Field data collection methods include observation and documentation (first stage) and questionnaire (second stage). The results obtained are: (1) The types of plants used as medicine in Teluk Kayu Putih Village are 27 species grouped into 25 families; the most plant species came from Family Euphorbiaceae, Myrtaceae, and Zingiberaceae, each with 2 species, (2) The media developed are specimens of medicinal plants originating from Teluk Kayu Putih village, including plant parts that have been dried using a pressing technique, arranged in a scrapbook with a black base color derived from black cardboard, the spesimens are pasted one by one and then identified, as well as put together and bound in a spiral to form a book, (3) The validity test from material experts and media experts on the media produced obtained a score of 81,35% and 85,26%, while the validity test score obtained a score of 86,31% (very feasible), (4) The readability test of the herbarium book by 23 respondents obtained an average percentage score of 92,6%, means that the media is suitable to use.
Phytoremediation of nickel by Paraserianthes falcataria with varying levels of manure Hilda Ayu Melvi Amalia; Armadi Chairunnas; Andhika Puspito Nugroho
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.2118

Abstract

The objective of this study were to identify effective variations in fertilizer doses for phytoremediation of heavy metal nickel (Ni) by using sengon plants (Paraserianthes falcataria) before being used for post-mining land reclamation. This research is an experimental study, the growth parameters measured include plant height, number of leaves, root length, and plant biomass. The data obtained were analyzed using analysis of variance (ANOVA) and continued with Duncan's test. The manure used consists of chicken manure, calcium carbonate, and rice bran. Variation in fertilizer dose is the ratio between manure to mine soil 40:60 (A), 50:50 (B), 60:40 (C), 70:30 (D), and control without fertilizer (E) with four repetitions time. The results showed that there was a significant difference between the concentration of nickel content before and after the treatment of fertilizer dosing (p>0.05), which means that the dose of fertilizer can affect plant growth and phytoremediation abilities. The dose of D fertilizer (70:30) is the most suitable for phytoremediation of heavy metal nickel (Ni) because it shows the highest heavy metal concentration in the roots, which is 3.2 ppm. The plant growth parameters measured showed that the dose of fertilizer B (50:50) was most suitable for increasing plant height and biomass (P. falcataria) with a plant height of 27 cm and a biomass of 0.9 g/m2. The dose of C fertilizer (60:40) is most suitable for increasing the number of leaves with an average of 111.5 leaves. Control without fertilizer (E) is most suitable for increasing the root length of P. falcataria. Thus, the addition of manure affects the growth of P. falcataria, and nickel phytoremediation using P. falcataria at the dose of manure D (70:30) can reduce the nickel content in the soil.
The feasibility of e-encyclopedia on plants structure and function as teaching material for junior high school students in Pontianak Siti Komaria; Kurnia Ningsih; Titin Titin
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.1774

Abstract

This study aims to determine the feasibility and responses of students to the E-Encyclopedia on the structure and function of plants material for the 8th grade of junior high school students. This is a Research and Development (R&D) which consists of 7 stages namely potential and problems, data collection, product design, product design validation, design revision, product testing, and product revision. The instrument used was the validation sheet of the E-Encyclopedia of Plant Structure and Function and a student response questionnaire filled out by 15 respondents. The average result of the validation analysis of Aiken's V E-Encyclopedia of Plant Structure and Function obtained 0,90 is in the valid category, while the reliability value of 0,775 is in the sufficient reliability category. The results of the questionnaire response analysis obtained an average of 77,6%, namely in the strong category. From the results obtained, it can be concluded that the e-encyclopedia is appropriate to be used as teaching material on the Structure and Function of Plants for 8th grades of junior high school.
In silico exploration of the potential barcode DNA in Anopheles sp., a malarian vector from Indonesia Syubbanul Wathon; Devi Astikaningrum; Naura Paramitha Cindy Ardyah; Rike Oktarianti; Kartika Senjarini
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.1749

Abstract

Malaria is an infectious disease caused by Plasmodium and transmitted to humans through the Anopheles mosquito vector. The large diversity of Anopheles in Indonesia, which consists of similar complex species, makes it difficult to identify species based on morphological characteristics. Therefore, it is necessary to have another approach to identifying species based on molecular characteristics using DNA molecular markers. This approach becomes important as a basis for vector-based malaria control efforts. This research aims to explore potential DNA barcodes based on in silico studies as a reference for DNA barcoding analysis of Anopheles species in Indonesia. The data sequences of CO1 and ITS2 from Anopheles sp. were collected on the NCBI database. The sequence alignment was performed using CLUSTALX2. The construction of a phylogenetic tree was carried out using MEGA XI. Data analysis was performed by observing the construction of phylogenetic trees, bootstrap scores, and genetic distance. The data sequence in NCBI shows that 10 species of the genus Anopheles as malaria vectors have been studied in Indonesia. Sequence alignment of the 10 species based on CO1 and ITS2 markers showed that ITS2 markers had higher genetic variation than CO1. Therefore, the ITS2 sequence has the potential to be a DNA barcode for the molecular identification of Anopheles.
Elementary students’ HOTS and attitude in environmental education: Sub topic of biology about disaster Ilmi Zajuli Ichsan; Lufty Hari Susanto; Ati Kusmawati; Eva Dwi Kumalasari
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.2528

Abstract

needs to be learned by elementary school students. The problem of this drought disaster has an impact on the sustainability of people's lives, including impacting elementary school students. Capabilities such as Higher Order Thinking Skills (HOTS) which are implemented in the form of an attitude of caring for the environment need to be developed. The purpose of this study was to describe HOTS scores and environmental care attitudes of elementary school students on the topic of drought and environmental care attitudes. The results of this study indicate that students' HOTS scores are still in the low category (27.70). As for the attitude of caring for the environment is in the moderate category (69.12). Environmental education needs to be developed to increase HOTS and environmental care attitudes related to drought disasters which have an impact on public health. The conclusion of this study is that students' HOTS scores are still in the low category and environmental care attitudes are still in the moderate category.
STEM-based worksheet on digestive system material to improve students’ creative thinking skills Khairuna Khairuna
Jurnal Biolokus Vol 6, No 1 (2023): June
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v6i1.2524

Abstract

One of the problems that often occur in the learning process is the low level of student's creative thinking which can be seen from four aspects, namely fluency, flexibility, originality, and elaboration. Efforts that can be made to improve students' creative thinking abilities include developing learning tools based on the STEM learning approach. This study aims to produce biology worksheet based on STEM approaches in digestive system material that is valid, practical, and effective in improving students' creative thinking skills. The type of research carried out is research and development by using the 4D model (Define, Design, Develop and Disseminate).  The instrument used was validation sheets, questionnaire, and test. In this study, the average score of students' creative thinking ability was 85.30 with a completeness percentage of 87.5%. Based on the results obtained, it can be concluded that the STEM-based worksheet in digestive system material is declared valid and feasible for use and can improve students' creative thinking.

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