Jurnal Mangifera Edu
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Feasibility of Submatery Documentary Film of Diversity Concepts, Types, Ecosystems Based on Nepenthes
Full text linkThis research aimed to know the Nepenthes plant species in the Nanga Nyabau forest, Kapuas Hulu Regency, and determine the feasibility of documentary film media as a learning media in the Submission of the Concept of Diversity in Genes, Types, and Ecosystems. This research was conducted through two stages. First, the Nepenthes inventory in the Nanga Nyabau Indigenous Forest, Kapuas Hulu District, then continued with the making and feasibility test of documentary films as learning media. The form of this research was descriptive. Sampling used a purposive sampling technique with the explored method. The documentary media was tested for feasibility by five validators. The validators are two lecturers of Biology Education Study Program FKIP Universitas Tanjugpura, one Biology teacher in class X of SMA Negeri 1 Putussibau, one Biology teacher in class X SMA Negeri 2 Putussibau, and one teacher of Biology in class X of SMAS Karya Budi Putussibau. Based on the results, there were five types of Nepenthes plants, namely Nepenthes bicalcarata, Nepenthes mirabilis var. echinostoma, Nepenthes rafflesiana Jack., Nepenthes reinwardtiana, and Nepenthes xneglecta. The CVI value of documentary film media was one and categorized valid to be used as a learning medi
The Effectivenes of Local Wisdom-Based Science Teaching Materials in Improving High School Students Critical Thinking Skills
Full text linkIn 21st century learning, critical thinking skills are the main choice that must be mastered by students. This study aims to determine the effectiveness of local wisdom-based science teaching materials in improving junior high school students’ critical thinking skills. Most science teachers still apply teacher-centered learning, so students tend to be passive. This type of research is quasi-experimental with a pretest-posttest control group design. The study was conducted in the even semester of the 2019/2020 school year. The subjects of the research were grade VII students. Data collection techniques and instruments in the form of tests that include indicators of critical thinking skills. Data analysis used homogeneity test, Kolmogorov Smirnov normality test, independent sample t-test, and n-gain score. The results of the independent sample t-test are sig. (2-tailed) = 0,000<sig. α = 0.05. Students’ critical thinking skills in the experimental class were higher (N-gain score = 39.09%) than in the control class (N-gain score = 12.03%). Based on the study results, it can be concluded that there is a significant influence on the application of local wisdom-based teaching materials in improving the critical thinking skills of middle school students in the moderate category
The Urgency of Life-Long Learning for Students in Biology Learning
Full text linkEducation is a need for every child to have insight and hope for goals because basics education is helpful until the end of life. The existence of life-long learning indicators is very relevant to be applied by students in learning biology. These indicators include complex thinking, information processing, effective communication, collaboration/cooperation, and thinking habits. This study aims to determine the urgency of providing life-long learning for students in biology learning. The research method uses qualitative methods, the research instrument used in this study is a questionnaire. The results showed that the student's response was in the high category with a percentage of 60%, which means that students already understand the concept of life-long learning but have not applied it in their daily lives. 60.9% of students responded that life-long learning had not been implemented in biology learning at school and agreed if it was applied in biology learning. Therefore, the provision of life-long learning for students in biology learning is considered very important to apply
Induction of Apple Cucumber (Cucumis melo) Buds Development by Combination of Kinetin and IAA In B5 (Gamborg) Medium
Full text linkResearch on indirect organogenesis of apple cucumber (Cucumis sp.) Was conducted from June until August 2020. The aim of the study is to get the best results from IAA and Kinetin concentrations on the growth of buds organogenesis to apple cucumber plants (Cucumis sp.) in B5 Gamborg Medium. The method used was an experimental method with nonparametric statistics with 25 treatments that were repeated 5 times and analyzed descriptively by the Kruskal Wallis test. The results showed that growth of apple cucumber shoots at the best combination treatment of IAA and Kinetin that is at concentrations 2,5x10-7 IAA and 3,2x10-5 Kinetin (A3B1) which resulted in appear shoots time at 39 days after initiation (hsi), it can provide the best growth of shoot height of 0,4 cm and the highest number of a shoot is 3. However, treatment with concentration 2,0x10-7 M IAA and 4,4x 10-5 Kinetin (A2B2) resulted in appearing shoots time at 39 days after initiation (hsi) and shoot height of 0,35 cm
Seedling Functional Types and Cotyledons Shape Some Species of Woody Plant
Full text linkABSTRACT
Woody plant produce small to large seeds which can affect germination process. Cotyledons as an important food source for early growth of seedlings. The position, function, and type of cotyledons when seeds germinate varies. This research aimed to determine cotyledons characters of woody plant seedlings collection in Bogor Botanic Gardens. The position, function and type of cotyledons were observed for 65 species of seedlings.This research used an observative method and was analyzed descriptively.The position of cotyledons when the seeds germinate are epigeal (above the ground) and hypogeal (remain in the soil). The epigeal cotyledons type found in 44 species that is higher than hypogeal cotyledons type (21 species). The function of cotyledons for seedlings is to reserve food or photosynthesis. Species with cotyledon reserve type were more than foliar cotyledons type (43 species and 22 species, respectively). The proportion of seedling types CER (cryptocotylar-epigeal-reservoir), CHR (cryptocotylar-hypogeal-reservoir), PEF (phanerocotylar-epigeal-foliaceous), PER (phanerocotylar-epigeal-reservoir), PHR (phanerocotylar-hypogeal-reservoir) were 3.08%, 16.92%, 33,85%, 29,23%, 16,92%, respectively
Analysis of Students’ Quantitative Literacy in Environmental Pollution
Full text linkThis study aimed to measure and analyze student quantitative literacy in environmental pollution concept based on six indicators quantitative literacy. This method uses qualitative descriptive. This research was carried out at one of the senior high schools in Tasikmalaya wich is included in one of the schools with cluster one, subject technique was carried out in purposive, whose class has the highest score in biology and mathematics of 30 students. The design used is a case study. This research was done in June 2020. The data collection techniques used to test quantitative literacy refer to the American Colleges and Universities' Association, questionnaire, and interview. Based on data analysis, obtained that of 30 students, two students (6.67%) in the high category, 24 students (80%) in the medium category, and four students (13.33%) in the low category
Influence of Different Types of Diets on the Growth Performance of Juvenile Guppies (Poecilia reticulata Peters, 1859)
Full text linkThis investigation aimed to analyze the effects of different diets and determine the optimal feed on the growth performance of guppy Poecilia reticulata (Peters, 1859). In the present study, juvenile guppies were procured from commercial fish breeders, Kolathur, Chennai, and fed with four experimental diets, namely Diet I (Control-Pellet feed), Diet II (Formulated feed), Diet III (Dry Tubifex), and Diet IV (Live feed Brachionus plicatilis) to examine the effects on growth and survival rates. In the experiment, 12 glass circular tanks with a volume of 10 L were used, and ten juveniles having an average body length and weight of 0.8 cm and 0.01 g were randomly introduced into each aquarium (80 cm×30 cm×35 cm) in triplicates. During the experimental study, the fish were fed two times a day ad libitum for 90 days. The various growth parameters and proximate composition of the diets were calculated by following standard methods. The findings showed significant differences (p<0.05) in the fish's various growth parameters fed with different diets. The fish fed with Diet IV 52% crude protein performed better than those provided with lower levels. The increase in growth parameters could be attributed to increased levels of dietary crude protein. However, the diet does not have any significant impact on fish survival rates. Thus, it is concluded that the Live Feed B. plicatilis with 52% crude protein is suitable for theoptimum growth of Poecilia reticulata under the current experimental set-up and recommended for feeding juvenile guppies
The Feasibility of Guided Inquiry Based Powtoon Video Media Submatter Pressure Organism
Full text linkThis research aims to determine the feasibility of a video powtoon learning media application based on guided inquiry submater application of the concept of substance pressure in organism as a learning media for students and to find responses by students to the powtoon video media. This research is Research and Development (R&D) research with the Borg and Gall development model which consists of ten stages, this research has only reached the seventh stage which includes potentials and problems, data collection, product design, product validation, design revisions, product trials, and product revisions. The instruments used were the media validation sheet and the student response questionnaire validation sheet which was validated by 5 validators and the student response questionnaire. The subjects were students of class XI SMP Negeri 3 Pontianak. The validation results obtained CVR and CVI values, namely 1 which has met the minimum limit of 0.99 so that it is declared valid. The product trial obtained an overall average score for aspects (cognition, affection, conation) which was 83,57% so it is categorized as very strong. It can be concluded that the powtoon video media based on guided inquiry sub material is suitable for use as a learning medium
Physical Quality of the First Egg of Japanese Quail (Coturnix japonica L.) after Given Liquid Herbal Concoction
Full text linkThis study aims to determine the first egg's physical quality in Coturnix japonica L. after being given a liquid. The study is an experimental study with a Completely Randomized Design. In this study, the test animals were 24 Coturnix japonica L. randomly selected from 42 quail with 12 days old and average body weight of ± 37.67 g. They have been selected are divided into four treatment groups, i.e., P0: a control group with untreated drinking water, P1: 3 ml/liter water, P2: 6 ml/liter water, P3: 9 ml/liter water. Each treatment group consisted of 6 replications. Variables analyzed included egg weight, eggshell weight, yolk weight, albumen weight, egg yolk index, and egg quality index. The results showed that the addition of herbal concoction with the treatment of 3 ml, 6 ml, and 9 ml per 1 liter of drinking water on the physical quality of the first egg of Coturnix japonica L. including egg weight, yolk weight, albumen weight, shell weight, egg quality index, and yolk index statistically showed results were not significantly different (P>0.05 ), but the addition of herbal concoction did not have a negative effect on the physical quality of the first eggs of Coturnix japonica L
Relationship Between Critical Thinking Skills and Students' Decision-Making Skills on Virus Materials In MAN 1 Tasikmalaya
Full text link This research aims to find out the relationship between critical thinking skills and students' decision-making skills on viral material in MAN 1 Tasikmalaya Regency. The research method used is correlational. The population in this study was all students of class X MIPA consisting of 8 classes. The sampling technique uses purposive sampling with samples class X MIPA 3, X MIPA 4, and X MIPA 5 with 107 students. Data collection techniques using instruments in the form of tests. The research instrument used in this study consists of two instruments, namely critical thinking skills instruments in the form of a question in the form of a description, as many as ten questions with five indicators. For the instrument of decision-making skills in the form of a question in the form of a description, as many as 12 questions with five indicators. The data analysis technique used is a bivariate correlation test. Based on the results of research shows that critical thinking skills have a weak relationship with decision-making skills. This is evidenced by a correlation coefficient value of 0.208 with a determination coefficient value of 4.3%.
Keywords: Critical Thinking Skills, Decision Making Skills, Virus Material