JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS最新文献_第10页

Exploration Of High Economic Value Microalgaes In The Mangrove Area Of Pari Island, Seribu Islands, Jakarta 雅加达Seribu群岛Pari岛红树林高经济价值微藻的探索

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-11-25 DOI: 10.36987/jpbn.v8i3.3096

A. Hutari, Ranti An Nisaa, Suhendra Suhendra, Yeni Agustin, Khairunisa Aprilia Ayunda

{"title":"Exploration Of High Economic Value Microalgaes In The Mangrove Area Of Pari Island, Seribu Islands, Jakarta","authors":"A. Hutari, Ranti An Nisaa, Suhendra Suhendra, Yeni Agustin, Khairunisa Aprilia Ayunda","doi":"10.36987/jpbn.v8i3.3096","DOIUrl":"https://doi.org/10.36987/jpbn.v8i3.3096","url":null,"abstract":"Mangrove areas are widely reported as a place of abundance of microalgae producing omega-3 docosahexaenoic acid (DHA) and other bioactive materials of high economic value from the genus Aurantiochytrium. The search for microalgae was carried out in the mangrove area of Pari Island, Seribu Islands, Jakarta, in April 2022 and identified at the Biology Education Laboratory, FKIP UHAMKA. The purpose of this study is part of the long-term goal of collecting new strains or isolates from the genus Aurantiochytrium and other members of the family Thraustochytriidae from forests in Indonesian mangroves. This research was conducted by isolating microalgae with the pure streaking method and identifying them morphologically. This study succeeded in obtaining eight isolates (UHA1, UHA3, UHA5, UHA6, UHA10, UHA11, UHA12, and UHA13) which in the appearance of colonies and microscopic morphology lead to the species Aurantiochytrium sp. One of the isolates obtained (UHA12) was cultivated by batch culture for five days in an Erlenmeyer flask using glucose, yeasts extract, and seawater as a medium. The result is that the dry biomass obtained is almost equivalent to that of the Aurantiochytrium sp. other famous","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130383127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Attack Rate of Pocket Caterpillar (Metisa plana) And How To Control It on Oil Palm (Elaeis Guineensis Jacq) Plantation At PT Umada Pernantian “A”, North of Labuhanbatu Regency 拉布汉巴图县北部Umada perantian " A " PT Umada perantian " A " Oil Palm (Elaeis Guineensis Jacq)种植园口袋毛虫(Metisa plana)侵染率及防治

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-25 DOI: 10.36987/jpbn.v8i2.2686

Ricardo Siallagan, W. Lestari, Dini Hariyati Adam

{"title":"The Attack Rate of Pocket Caterpillar (Metisa plana) And How To Control It on Oil Palm (Elaeis Guineensis Jacq) Plantation At PT Umada Pernantian “A”, North of Labuhanbatu Regency","authors":"Ricardo Siallagan, W. Lestari, Dini Hariyati Adam","doi":"10.36987/jpbn.v8i2.2686","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2686","url":null,"abstract":"Oil palm (Elaeis guineensis jacq.), is a vegetable oil-producing plant, which cannot be separated from the attack of caterpillars that eat oil palm leaves which can cause a decrease in plant production. The purpose of this study was to determine the attack rate of bagworm (Metisa plana) and how to control it, on each oil palm plant block at PT. Umada Pernantian \"A\", Kec. Marbau, North Labuhan Batu Regency. The method used in this research is descriptive method by collecting primary data and secondary data. Primary data is the result of observations in the field with a pest census using a descriptive method. Secondary data is data from the previous pest census in the company. The highest attack rate of Metisa plana was found in block I and block II with an incidence of 18% in block I and 8% in block II, the number of pests in block I was 27,336, and 18,480 in block II, which was >5 tails / midrib with weight category. The lowest Metisa plana attack rate was found in block III and block V where the percentage of bagworm attacks in block III: 0.08% and in block V: 0.11%, the number of pests in block III: 23 tails and block V: 26 tails, with an attack rate of <2 bagworms per midrib. After chemical control was carried out in blocks I and II, the percentage of attacks in block I: 0.43% and block II: 0.34%, the number of pests in block I: 100 and 70 in block II, the attack rate in block I and II were being <2 tails/midrib in the light category","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127853964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of the Variations of Molasses Concentration And Corn Flour on Growing Media for White Oyster Mushroom (Pleurotus Ostreatus) Productivity 糖蜜浓度和玉米粉对白平菇产量的影响

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-21 DOI: 10.36987/jpbn.v8i2.2881

D. Anggraini, K. Warsito, Muhammad Hafiz

{"title":"Effect of the Variations of Molasses Concentration And Corn Flour on Growing Media for White Oyster Mushroom (Pleurotus Ostreatus) Productivity","authors":"D. Anggraini, K. Warsito, Muhammad Hafiz","doi":"10.36987/jpbn.v8i2.2881","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2881","url":null,"abstract":"Oyster mushroom (Pleurotus ostreatus) can grow well on materials that contain carbohydrates. One of the fungal growth ingredients that contain carbohydrates is corn flour. In addition to corn flour, molasses can also be used to stimulate the growth of white oyster mushrooms. The purpose of this study was to see the effect of variations in the concentration of molasses and corn flour on the growing media on the productivity of white oyster mushroom (Pleurotus ostreatus). The research was conducted in May-July 2022 at the Center for Breeding and Development of Oyster and Ear Mushroom Cultivation on Sunggal District, Deli Serdang Regency. The research method used was a factorial completely randomized design (CRD) with 2 factors, 16 treatment combinations and 2 replications so that there were 32 baglogs. The first factor contained 4 levels of treatment, namely M0: 0 ml/baglog, M1: 7.5 ml/baglog, M2: 15 ml/baglog and M3: 22.5 ml/baglog. The second factor has 4 levels of treatment, namely J0: 0 gr/baglog, J1: 10 gr/baglog, J2: 20 gr/baglog and J3: 30 gr/baglog. Parameters observed were mycelium growth rate (cm), stalk height (cm), hood diameter (cm), hood thickness (mm), number of branches/clumps, wet weight (g). The results of the highest data mycelium growth rate in treatment J0 of 20.75 cm. The result of the highest data stalk height in the M1 treatment was 6.19 cm. The results of the highest data hood diameter in treatment J0 of 10.18 cm. The result of the highest data hood thickness in treatment J2 was 5.09 mm. The result of the highest number of branches/data clusters in the M3 treatment was 9.13 branches. The result of the highest wet weight (g) data in the M3 treatment was 140.75 gr.","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115608773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship Between the Virus Lesson’s Knowledge and Healthy Living Behavior of Student: In Study Case to the First Grade of Senior High School (X-IPA Class) SMA Negeri 1 Simpang Kiri in New Normal Period

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-21 DOI: 10.36987/jpbn.v8i2.2989

Siska Pragawati Manik, Ulfayani Mayasari

{"title":"Relationship Between the Virus Lesson’s Knowledge and Healthy Living Behavior of Student: In Study Case to the First Grade of Senior High School (X-IPA Class) SMA Negeri 1 Simpang Kiri in New Normal Period","authors":"Siska Pragawati Manik, Ulfayani Mayasari","doi":"10.36987/jpbn.v8i2.2989","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2989","url":null,"abstract":"In the new normal, teaching and learning activities can doing by offline, but with the condition that health protocols must be implemented. A person's behavior will be based on knowledge, by obtaining knowledge that is used as the formation of behavior, students can apply the habits they have understood. Students of X IPA class of senior high school SMAN 1 Simpang Kiri have studied virus material in Biology subjects related to COVID-19. Therefore, this study aims to determine the level of students' knowledge about virus material and how students' healthy living behavior in the new normal era in preventing transmission of t Covid and knowing the relationship between knowledge of virus and healthy living behavior of students in new normal. This research doing with a quantitative approach and manifold correlational research. Samples taken using simple random sampling technique untill 75 respondents were obtained. Data collection technique using test instruments and questionnaires and analyzed with the Kendall's Tau correlation test. Based on the results of the study, it shown that the frequency with which students' knowledge levels highest was in very high category, the highest frequency students healthy behavior in new normal in preventing COVID ransmission in good category, from analysis Kendall's Tau correlation test, it showed knowledge of virus and healthy living students in new normal has relationship and regression value of 0.245 and the strength relationship in low category and has a positive direction. From the calculation of coefficient determination, the contribution or magnitude of influence knowledge on behavior is 6%.","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121458803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth Response and Results of White Oyster Mushroom (Pleurotus ostreatus) due to Additional Concentration Molasse and Rice Flour in Media Baglog 蔗渣和米粉对白平菇生长的影响

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-21 DOI: 10.36987/jpbn.v8i2.2883

Khairi Amri Nasution, K. Warsito, Muhammad Hafiz

{"title":"Growth Response and Results of White Oyster Mushroom (Pleurotus ostreatus) due to Additional Concentration Molasse and Rice Flour in Media Baglog","authors":"Khairi Amri Nasution, K. Warsito, Muhammad Hafiz","doi":"10.36987/jpbn.v8i2.2883","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2883","url":null,"abstract":"White oyster mushroom (Pleurotus Ostreatus) is a type of wood fungus. The purpose of this study was to determine the growth response of white oyster mushroom (Pleurotus ostreatus) due to the addition of molasses and rice flour. This research was conducted at the Center for Breeding and Development of Oyster Mushroom and Ear Mushroom Cultivation Sunggal District, Deli Serdang Regency. This study used a factorial completely randomized design (RAL) consisting of 2 treatment factors, 16 treatments, 2 replications and 32 baglogs. The first factor is the concentration of molasses with M0: (control), M1: 7.5 ml/20 ml, M2: 15.0 ml/20 ml, M3: 22.5 ml/20 ml and the second factor is the administration of Rice Flour with a concentration of T0: (control), T1: 20 gr/20 ml, T2: 40 gr/20 ml, T3: 60 gr/20ml. Parameters observed were mycelium growth rate (cm), stalk height (cm), hood diameter (cm), hood thickness (mm), number of branches/clumps, and wet weight (g). The rice flour treatment 12 days after inoculation showed significantly different results with the highest data T0: 10.13cm and the lowest data T3: 8.00cm. The highest data was T0:14.85cm and the lowest data was T3: 12.36cm after 18 days after inoculation. The highest parameter of plant height was M0: 20.13cm and the highest data of rice flour treatment was T2: 19.13 cm. The hood diameter parameter showed the highest data was M2: 43.90cm and the highest rice flour treatment data was T2: 2.64cm. The highest data hood thickness parameters are M2: 29.09mm and T2: 29.98 mm. parameters of the highest number of data branches M0: 88.75 branches and T1: 86.25 branches. The highest data wet weight parameter was M0: 88.75 grams and the highest data was given to rice flour at T1: 86.25 grams","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122429671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effectiveness of Molase and Fruit Waste Liquid Organic Fertilizer in Baglog Media on the Growth and Production of White Oyster Mushroom (Pleurotus ostreatus) 蔗渣培养基中糖蜜酶和水果废液有机肥对白平菇生长和生产的影响

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-21 DOI: 10.36987/jpbn.v8i2.2882

Pinkya Nissa Penida, K. Warsito, Muhammad Hafiz

{"title":"Effectiveness of Molase and Fruit Waste Liquid Organic Fertilizer in Baglog Media on the Growth and Production of White Oyster Mushroom (Pleurotus ostreatus)","authors":"Pinkya Nissa Penida, K. Warsito, Muhammad Hafiz","doi":"10.36987/jpbn.v8i2.2882","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2882","url":null,"abstract":"Fungal growth is influenced by various kinds of additional nutrients provided, including the addition of molasses and liquid organic fertilizer from fruit waste. The purpose of this study was to examine the effect and interaction of adding molasses and liquid organic fertilizer on baglog media on the growth and production of white oyster mushroom (Pleurotus ostreatus). The research was conducted from May-July 2022 at the Center for Breeding and Development of Oyster Mushroom Cultivation on Sunggal District, Deli Serdang Regency. The research method used was a 2-factor factorial Completely Randomized Design (CRD), 16 treatment combinations and 2 replications so that there were 32 baglogs. The first factor consisted of 4 levels of treatment, namely M0: no treatment (control), M1: 7.5 ml/baglog, M2: 15 ml/baglog and M3: 22.5 ml/baglog. The second factor consisted of 4 levels of treatment, namely P0: no treatment (control), P1: 7.5 ml/baglog, P2: 15 ml/baglog and P3: 22.5 ml/baglog. Parameters observed were mycelium growth rate (cm), stalk height (cm), hood diameter (cm), hood thickness (mm), number of branches/clumps, and wet weight (g). In the mycelium growth rate parameter, the highest data was found in the P0 treatment of 20.62 cm. In the stalk height parameter, the highest data was found in the M0 treatment of 7.17 cm. In the hood diameter parameter, the highest data was found in the M2 treatment of 10.55 cm. In the hood thickness parameter, the highest data was found in the M2 treatment of 5.11 mm. In the parameter of the number of branches, the highest data is found in the P3 treatment of 9.63. In the wet weight parameter, the highest data in the P3 treatment was 126.38 g.","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126710880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antagonistic and Antibacterial Activity of Stapylocossus aureus and Isolates of Oral Bacteria from the Endogenous Fungus Apis dorsata Binghami Nest 金黄色葡萄球菌与内源真菌冰哈密巢口腔细菌分离株的拮抗抑菌活性

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-14 DOI: 10.36987/jpbn.v8i2.2739

M. Semuel, Masje Wurarah, Reinny Silvana Tuegeh

{"title":"Antagonistic and Antibacterial Activity of Stapylocossus aureus and Isolates of Oral Bacteria from the Endogenous Fungus Apis dorsata Binghami Nest","authors":"M. Semuel, Masje Wurarah, Reinny Silvana Tuegeh","doi":"10.36987/jpbn.v8i2.2739","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2739","url":null,"abstract":"Apis Dorsata Binghami honey bee is a honey bee endemic to Indonesia, living naturally in the forests of Sulawesi. This study aimed to obtain isolates and characteristics of endogenous fungi antibiotic activity from Apis dorsata Binghami nest. The research consisted of isolation of fungi from beehives using potato dextro agar, pure culture of fungi, antagonist test and antibiotic test using disc diffusion method. Antibiotic test was performed on oral bacteria and Staphylococcus aureus. The results obtained six isolates of fungi from the nest of Apis dorsata Binghami, namely isolates FAB1, FAB2, FAB3, FAB4, FAB5 and FAB6. The results of the antagonist test showed that the isolates FAB2 and FAB3 had the best antagonist properties, while the FAB6 isolates had the weakest antagonist properties. The FAB2 isolate showed the best bacterial growth inhibition zone average for the isolates of oral bacteria and Staphylococcus aureus. The inhibition zone lasts up to 3 x 24 hours so that the activity of the bacteria is bactericidal. From the results of this study, it can be concluded that the endogenous fungus Apis dorsata Binghami is a potential source of antibacterial bioactives.","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"20 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131250591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Mentimeter Learning Media on Students' Learning Outcomes in Biology Learning Mentimeter学习媒介对学生生物学习成果的影响

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-14 DOI: 10.36987/jpbn.v8i2.2791

Muhammad Fahmi Nasution, N. Anas

{"title":"The Effect of Mentimeter Learning Media on Students' Learning Outcomes in Biology Learning","authors":"Muhammad Fahmi Nasution, N. Anas","doi":"10.36987/jpbn.v8i2.2791","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2791","url":null,"abstract":"This research is expected to be able to decide whether the use of a mentimeter has an effect on student learning outcomes in learning biology. The population in this research is third Class (XI) of Mipa 1 with a sample of 30 students as the experimental class and third Class XI of Mipa 2 with a sample of 30 students as the control class. The method in this study uses quantitative methods. The data analysis method was tested with normality test, homogeneity test and Mann-Whitney test then tested the hypothesis with the provisions of Ho; There is no influence of the mentometer on the learning outcomes of students in biology learning. Ha; There is an influence of the mentometer on the learning outcomes of students in learning biology. The results of data analysis were obtained from the normality test with a significance value of not up to 0.05 and a homogeneity test with a value of 0.647 which stated that the data were not normally distributed and not homogeneous. The results of the data from the Mann-Whitney test obtained a result of 0.000 where the results obtained were not up to 0.05 (0.000 <0.05) with the conclusion that the hypothesis was accepted that the mentimeter media affected the learning outcomes of students in biology learning. The conclusion of this study states that the meter basically affects student learning outcomes in learning biology.","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131895982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utilization of Open Reasoned Multiple Choice Test in Analyzing Misconceptions about The Respiratory System Material for Second Grade (XI Class) of Senior High School

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-14 DOI: 10.36987/jpbn.v8i2.2839

Sari Putri Rambe, Syarifah Widya Ulfa

{"title":"Utilization of Open Reasoned Multiple Choice Test in Analyzing Misconceptions about The Respiratory System Material for Second Grade (XI Class) of Senior High School","authors":"Sari Putri Rambe, Syarifah Widya Ulfa","doi":"10.36987/jpbn.v8i2.2839","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2839","url":null,"abstract":"The reason for this study was to dissect understudies misguided judgments by utilizing the Multiple Choice Test with open reasons and to describe the causes of misconceptions in the respiratory system material for third class (XI) at SMA Negeri 2 Rantau Selatan with a sample of 62 students. This study uses quantitative research with descriptive methods to obtain information and data that can be processed to find out how big the level of misconceptions that occurs in students. The instruments used are multiple choice questions with open reasons and interviews. The data acquired will be introduced as numbers and afterward investigated utilizing by Microsoft Excel 2007, then perform calculations using the formula proposed by Arikunto to determine the level of understudies who figure out ideas, don't grasp ideas and misguided judgments. The results showed that 28.3992% of students understood concepts, 39.086% of students knew concepts, and 32.1505% of students experienced misconceptions on the respiratory system material. Factors causing misconceptions, namely, (1) students experience a lot of lack concentration and lack of interest to reading the material studied during learning, (2) some sub-materials make students still feel confused about the mechanisms of breathing, transport and gas exchange, (3) the teacher's book and students only use by Erlangga publisher package from school provides and, (4) the teaching method of teacher does not routinely carry out practicum, because the condition equipment of laboratory room not support to used","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129793232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Contextual Teaching and Learning (CTL) Models on Student Activities and Learning Outcomes on Plant Seeds Material in First Grade (X Class) Senior High School 情境教学模式对高一(X班)植物种子材料学生活动和学习成果的影响

JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Pub Date : 2022-07-14 DOI: 10.36987/jpbn.v8i2.2868

Tri Anggraini, Syarifah Widya Ulfa

{"title":"The Influence of Contextual Teaching and Learning (CTL) Models on Student Activities and Learning Outcomes on Plant Seeds Material in First Grade (X Class) Senior High School","authors":"Tri Anggraini, Syarifah Widya Ulfa","doi":"10.36987/jpbn.v8i2.2868","DOIUrl":"https://doi.org/10.36987/jpbn.v8i2.2868","url":null,"abstract":"Contextual teaching and learning (CTL) is a learning model that focuses on the contribution of students to have choices in finding the material being studied and linking it to real situations to support students in applying it in their lives. The purpose of this study was to determine the effect of the Contextual Teaching and Learning (CTL) model on the activities and learning outcomes of students in first grade (X class) of Senior High School of SMA Negeri 1 Aek Songsongan with a sample of 69 students. The research approach uses a quantitative approach, with an experimental method with a nonequivalent control group design. Collecting data using pre-test and post-test scores consisting of six cognitive insights according to Bloom's taxonomy, namely aspects of remembering, understanding, applying, analyzing, synthesizing, and evaluating. And data collection also uses observation sheets to see student learning activities. In the instrument, the observation sheet for student learning activities includes six indicators, namely indicators of paying attention, asking and answering, expressing opinions, listening, solving problems, and being enthusiastic in participating in learning. The data obtained will be presented in the form of numbers and then analyzed using SPSS 24. The results of the research indicate that there is a significant effect on student learning activities after being given treatment using the Contextual Teaching and Learning learning model. the average value of student learning activities in the experimental class is good with a percentage value of 85.47% and the average value of student learning activities in the control class is quite good with a percentage value of 71.87%. The results also showed that there was a significant effect on student learning outcomes after being given treatment using the CTL model with the mean value of learning outcomes in the experimental class was 75.18 and the mean value in the control class were 60","PeriodicalId":422054,"journal":{"name":"JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132643980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1