Pub Date : 2022-02-12DOI: 10.26555/joubins.v1i2.4936
Teguh Cipta Rini, T. Widyaningrum
Production of bioethanol from jackfruit peel waste using Saccharomyces cerevisiae with crude enzyme ratio treatment of Trichoderma reesei and Aspergillus niger. Bioethanol is an alternative energy that is starting to be needed, along with the depletion of petroleum reserves. Bioethanol can be obtained from various wastes, one of which is jackfruit skin with the help of enzymes from T. reesei and A. niger and fermentation using S. cerevisiae. The purpose of this study was to determine the sugar content and the highest ethanol content of jackfruit peel waste using S. cerevisiae with the ratio treatment of crude enzymes T. reesei and A. niger. This research is experimental research. The experimental design used RAL with the independent variables being the ratio of crude enzymes T. reesei and A. niger, namely (1:0), (0:1), (1:1), (1:2), (2:1), (1:3), (3:1) and the dependent variable was the sugar and ethanol content of fermented jackfruit peel using S. cerevisiae. The measurement of sugar content using the DNS method, while the measurement of ethanol content using an alcoholmeter. Data analysis used one-way ANOVA (SPSS version 16). Based on the results of the study, the highest sugar content was in the ratio of crude enzymes T. reesei and A. niger after crude treatment 1:3 (14.21%) and after fermentation 1:2 (14.73%). The highest ethanol content was in the ratio of crude enzymes T. reesei and A. niger 1:1 (1,32%).
用粗酶比处理里氏木霉和黑曲霉的酿酒酵母菌从菠萝蜜果皮废料中生产生物乙醇。随着石油储量的枯竭，生物乙醇是一种开始被需要的替代能源。生物乙醇可从多种废弃物中提取，其中以菠萝蜜果皮为原料，利用酵母和黑霉的酶和酿酒酵母发酵制备生物乙醇。以酿酒酵母为原料，采用粗酶与粗酶的比例处理，测定了菠萝蜜果皮废弃物的糖含量和最高乙醇含量。这项研究是实验性研究。实验设计采用RAL，自变量为芦笋粗酶与黑曲霉粗酶的比值，分别为(1:0)、(0:1)、(1:1)、(1:2)、(2:1)、(1:3)、(3:1)，因变量为酿酒酵母发酵菠萝蜜果皮的糖和乙醇含量。用DNS法测定糖的含量，用酒精计测定乙醇的含量。数据分析采用单因素方差分析(SPSS version 16)。结果表明，粗处理后粗酶与黑曲霉的比例为1:3(14.21%)，发酵后为1:2(14.73%)，含糖量最高。粗酶与黑曲霉1:1时乙醇含量最高(1.32%)。
{"title":"Production of bioethanol from jackfruit rind-waste using Saccharomyces cerevisiae with crude enzyme treatment of Trichoderma reesei and Aspergillus niger","authors":"Teguh Cipta Rini, T. Widyaningrum","doi":"10.26555/joubins.v1i2.4936","DOIUrl":"https://doi.org/10.26555/joubins.v1i2.4936","url":null,"abstract":"\u0000\u0000\u0000\u0000Production of bioethanol from jackfruit peel waste using Saccharomyces cerevisiae with crude enzyme ratio treatment of Trichoderma reesei and Aspergillus niger. Bioethanol is an alternative energy that is starting to be needed, along with the depletion of petroleum reserves. Bioethanol can be obtained from various wastes, one of which is jackfruit skin with the help of enzymes from T. reesei and A. niger and fermentation using S. cerevisiae. The purpose of this study was to determine the sugar content and the highest ethanol content of jackfruit peel waste using S. cerevisiae with the ratio treatment of crude enzymes T. reesei and A. niger. This research is experimental research. The experimental design used RAL with the independent variables being the ratio of crude enzymes T. reesei and A. niger, namely (1:0), (0:1), (1:1), (1:2), (2:1), (1:3), (3:1) and the dependent variable was the sugar and ethanol content of fermented jackfruit peel using S. cerevisiae. The measurement of sugar content using the DNS method, while the measurement of ethanol content using an alcoholmeter. Data analysis used one-way ANOVA (SPSS version 16). Based on the results of the study, the highest sugar content was in the ratio of crude enzymes T. reesei and A. niger after crude treatment 1:3 (14.21%) and after fermentation 1:2 (14.73%). The highest ethanol content was in the ratio of crude enzymes T. reesei and A. niger 1:1 (1,32%).\u0000\u0000\u0000\u0000","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126645828","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}
Pub Date : 2022-02-12DOI: 10.26555/joubins.v1i2.4934
M. A. D. Susanto
Slamet Reservoir is an artificial reservoir located in the lowlands of urban areas. The existence of this reservoir with a stagnant water habitat type has great potential to become a natural habitat for various types of dragonflies, especially the Libellulidae family. This study aims to inventory and identify the types of dragonflies in the family Libellulidae in the Slamet Reservoir. In this study, the Visual Encounter Survey (VES) method was modified by using the Belt Transect method. This method is an observation by following a predetermined circular line. Sampling was carried out by catching adult dragonflies using insect nets and then preserving them using 50% acetone. After preservation, the body part of the dragonfly was measured using a caliper. The results showed that in the Slamet Reservoir there were 12 species of dragonflies from the Libellulidae family with a total of 131 individuals. The species with the highest relative abundance value in the Slamet reservoir is Brachythemis contaminata with a value of 51.15%. While the species with the lowest relative abundance values were Acisoma panorpoides, Diplacodes trivialis and Pantala flavescens with a value of 0.76%.
{"title":"Inventory and identification dragonfly Family Libellulidae at Slamet Reservoir, Surabaya, East Java","authors":"M. A. D. Susanto","doi":"10.26555/joubins.v1i2.4934","DOIUrl":"https://doi.org/10.26555/joubins.v1i2.4934","url":null,"abstract":"Slamet Reservoir is an artificial reservoir located in the lowlands of urban areas. The existence of this reservoir with a stagnant water habitat type has great potential to become a natural habitat for various types of dragonflies, especially the Libellulidae family. This study aims to inventory and identify the types of dragonflies in the family Libellulidae in the Slamet Reservoir. In this study, the Visual Encounter Survey (VES) method was modified by using the Belt Transect method. This method is an observation by following a predetermined circular line. Sampling was carried out by catching adult dragonflies using insect nets and then preserving them using 50% acetone. After preservation, the body part of the dragonfly was measured using a caliper. The results showed that in the Slamet Reservoir there were 12 species of dragonflies from the Libellulidae family with a total of 131 individuals. The species with the highest relative abundance value in the Slamet reservoir is Brachythemis contaminata with a value of 51.15%. While the species with the lowest relative abundance values were Acisoma panorpoides, Diplacodes trivialis and Pantala flavescens with a value of 0.76%.","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"39 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130602614","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}
Pub Date : 2022-02-12DOI: 10.26555/joubins.v1i2.4035
Afra Bilqis, Mila Ermila Hendriyani, M. Mahrawi, Dwi Ratnasari, I. Rifqiawati
Banten is one of the provinces in Indonesia with the quality of education that has not been said to be good. One of the causes of the low quality of education is the low thinking ability of students. This research aimed to determine the HOTS (High Order Thinking Skill) ability analytical skill of biology material for SMA/MA students in Banten Province by used description question. The research method used is descriptive qualitative. The sampling technique used in this study was random sampling. The sample used was 320 students in Banten Province. The instrument used was a description of the analytical skills, interview sheets and questionnaire sheets. The research was conducted from March to November 2020. Based on the results of the research, the average analytical ability of students in Banten Province was in the less category with a score of 22,19.
{"title":"Profile of HOTS ability (High Order Thinking Skill) level analysis of biological materials for SMA/MA students in-Banten Province","authors":"Afra Bilqis, Mila Ermila Hendriyani, M. Mahrawi, Dwi Ratnasari, I. Rifqiawati","doi":"10.26555/joubins.v1i2.4035","DOIUrl":"https://doi.org/10.26555/joubins.v1i2.4035","url":null,"abstract":"Banten is one of the provinces in Indonesia with the quality of education that has not been said to be good. One of the causes of the low quality of education is the low thinking ability of students. This research aimed to determine the HOTS (High Order Thinking Skill) ability analytical skill of biology material for SMA/MA students in Banten Province by used description question. The research method used is descriptive qualitative. The sampling technique used in this study was random sampling. The sample used was 320 students in Banten Province. The instrument used was a description of the analytical skills, interview sheets and questionnaire sheets. The research was conducted from March to November 2020. Based on the results of the research, the average analytical ability of students in Banten Province was in the less category with a score of 22,19.","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124461891","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}
Pub Date : 2022-02-12DOI: 10.26555/joubins.v1i2.4097
Setiono Setiono, N. Rustaman, A. Rahmat, S. Anggraeni
Inquiry skills are important basic skills that science teachers must possess. Inquiry skills underlie the standard implementation of the science learning process. This descriptive study aims to obtain an overview of the mastery of inquiry skills possessed by prospective biology teacher students in plant anatomy practicum. The research method used in this research is descriptive method. The research subjects in this study were prospective biology teacher students (n=42). The instruments used in this research are inquiry skills tests and interviews. The results showed that the average student inquiry skills was 43.36. This result is still below the indicator of completeness in mastering skills, which is 75. The acquisition of an inquiry skills score on the indicators of identifying problems (29.76), designing experiments and carrying out experiments (50.79), analyzing and interpreting data (54.76), constructing explanations (42.86), generate arguments from a number of evidences (43.33) and communicate information (38.69). The conclusion of this study is that the verification practicum learning experience that has been experienced by students has not been able to develop student inquiry skills optimally, so it is necessary to design lecture programs both in class and in laboratory to develop students' inquiry skills.
{"title":"Inquiry skills for biology teacher candidates in plant anatomy practicum","authors":"Setiono Setiono, N. Rustaman, A. Rahmat, S. Anggraeni","doi":"10.26555/joubins.v1i2.4097","DOIUrl":"https://doi.org/10.26555/joubins.v1i2.4097","url":null,"abstract":"Inquiry skills are important basic skills that science teachers must possess. Inquiry skills underlie the standard implementation of the science learning process. This descriptive study aims to obtain an overview of the mastery of inquiry skills possessed by prospective biology teacher students in plant anatomy practicum. The research method used in this research is descriptive method. The research subjects in this study were prospective biology teacher students (n=42). The instruments used in this research are inquiry skills tests and interviews. The results showed that the average student inquiry skills was 43.36. This result is still below the indicator of completeness in mastering skills, which is 75. The acquisition of an inquiry skills score on the indicators of identifying problems (29.76), designing experiments and carrying out experiments (50.79), analyzing and interpreting data (54.76), constructing explanations (42.86), generate arguments from a number of evidences (43.33) and communicate information (38.69). The conclusion of this study is that the verification practicum learning experience that has been experienced by students has not been able to develop student inquiry skills optimally, so it is necessary to design lecture programs both in class and in laboratory to develop students' inquiry skills.","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132338497","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}
Pub Date : 2021-06-23DOI: 10.26555/JOUBINS.V1I1.3864
Rosyid Ridlo Al Hakim, Tegar Aldi Saputro
Somatic cell nuclear transfer (SCNT) in cloning animals is important for reproductive biotechnology, it can be used for the conservation of wild, endangered or critically endangered, and also to improve superior local livestock genetic resources. So many publications that show the success of animal cloning with SCNT for various purposes, as well as the development of animal cloning methods. This paper will attempt to review the results of successful and limited animal cloning research on the needs of non-threatened (livestock and wild animals) and threatened wildlife. This research was kind of literature review. The research was conduct several phase these are identification, abstract screening, full-text selection, and mini-review writing. The results of SCNT biotechnology for animal cloning can be used for the preservation of wild animal germplasm genetic resources, increasing the production of superior livestock and ways of conserving threatened animals.
{"title":"Development of somatic cell nuclear transfer biotechnology for cloning of animals: a mini-review","authors":"Rosyid Ridlo Al Hakim, Tegar Aldi Saputro","doi":"10.26555/JOUBINS.V1I1.3864","DOIUrl":"https://doi.org/10.26555/JOUBINS.V1I1.3864","url":null,"abstract":"Somatic cell nuclear transfer (SCNT) in cloning animals is important for reproductive biotechnology, it can be used for the conservation of wild, endangered or critically endangered, and also to improve superior local livestock genetic resources. So many publications that show the success of animal cloning with SCNT for various purposes, as well as the development of animal cloning methods. This paper will attempt to review the results of successful and limited animal cloning research on the needs of non-threatened (livestock and wild animals) and threatened wildlife. This research was kind of literature review. The research was conduct several phase these are identification, abstract screening, full-text selection, and mini-review writing. The results of SCNT biotechnology for animal cloning can be used for the preservation of wild animal germplasm genetic resources, increasing the production of superior livestock and ways of conserving threatened animals.","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132128667","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}
Pub Date : 2021-06-23DOI: 10.26555/JOUBINS.V1I1.3725
Windy Noviyana, Merti Triyanti, Mareta Widiya
There are many kinds of fauna in the waterfall Curug Panjang Muara Beliti, Musi Rawas Regency. One of the types of fauna found in this area is insects. Dragonflies is insects whose habitats live in water and in the air. This study aims to determine the types of dragonflies and abiotic factors carried out in the Curug Panjang waterfall area by using purposive sampling method. Data collection techniques are observation, documentation and identification. Sampling using insects net. The results of the study have been obtained by 2 sub-orders, 4 families and 12 different species namely Diplacodes trivialis, Orthetrum pruinosum, Orthetrum sabina, Orthetrum pruinosum, Crocothemis servillia, Neurothemis ramburii, Trithemis aurora, Pantala flavescens, Tholymis tillarga, Orthetrum pruinosum, Crocothemis servillia, Neurothemis ramburii, Trithemis aurora, Pantala flavescens, Tholymis tillarga, Ictinogrius, Agriocnemis pygmaea, and Copera marginipes. Abiotic factor measurement results are with an average air temperature of 27,75ËšC, 76% air humidity and 396,5 lux light intensity.
有许多种类的动物在瀑布Curug Panjang Muara Beliti, Musi Rawas摄政。在这个地区发现的动物群中有一种是昆虫。蜻蜓是一种栖息在水中和空气中的昆虫。本研究旨在采用目的抽样的方法，确定在Curug Panjang瀑布区进行的蜻蜓种类和非生物因素。数据收集技术包括观察、记录和识别。用蚊帐取样。研究结果分为2亚目、4科、12个不同种，分别为:Diplacodes triodes tritrium pruinsum、sabina ortheum sabina、ortheum pruinina、Pantala flavescens、Tholymis tillarga、orthemus pruinsum、Crocothemis servillia、Neurothemis ramburii、tritheis pruinsum、servillia、Neurothemis ramburii、Trithemis aurora、panocnemis pygmaea、Tholymis tillarga、Ictinogrius、Agriocnemis pygmaea和coopera marinipes。非生物因子测量结果为平均气温为27.0 75ËšC，空气湿度为76%，光照强度为396.5勒克斯。
{"title":"Inventory of dragonflies in the Curug Panjang Waterfall area, Muara Beliti District, Musi Rawas Regency","authors":"Windy Noviyana, Merti Triyanti, Mareta Widiya","doi":"10.26555/JOUBINS.V1I1.3725","DOIUrl":"https://doi.org/10.26555/JOUBINS.V1I1.3725","url":null,"abstract":"There are many kinds of fauna in the waterfall Curug Panjang Muara Beliti, Musi Rawas Regency. One of the types of fauna found in this area is insects. Dragonflies is insects whose habitats live in water and in the air. This study aims to determine the types of dragonflies and abiotic factors carried out in the Curug Panjang waterfall area by using purposive sampling method. Data collection techniques are observation, documentation and identification. Sampling using insects net. The results of the study have been obtained by 2 sub-orders, 4 families and 12 different species namely Diplacodes trivialis, Orthetrum pruinosum, Orthetrum sabina, Orthetrum pruinosum, Crocothemis servillia, Neurothemis ramburii, Trithemis aurora, Pantala flavescens, Tholymis tillarga, Orthetrum pruinosum, Crocothemis servillia, Neurothemis ramburii, Trithemis aurora, Pantala flavescens, Tholymis tillarga, Ictinogrius, Agriocnemis pygmaea, and Copera marginipes. Abiotic factor measurement results are with an average air temperature of 27,75ËšC, 76% air humidity and 396,5 lux light intensity.","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131641311","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}
Pub Date : 2021-06-23DOI: 10.26555/JOUBINS.V1I1.3739
Wahyuni Wahyuni, R. Ramadani, T. Tiara
Biology is one of the fields of study that demands a high ability to think in understanding the subject matter contained in it, in this case scientific reading and good thinking skills become very important. This is because in biology learning there are many tables, diagrams and drawings, so it needs a special ability to understand it. Therefore, it is necessary to improve students' thinking skills in order to achieve optimal learning outcomes, because the ability to think will be the basic capital in improving other abilities. The research aims to determine the level of understanding of IAIN Kerinci students on terms in Biology and to know what factors influence the understanding of IAIN Kerinci Biology Tadris students in understanding terms in Biology. The population in this study was 975 students majoring in Tadris Biology IAIN Kerinci while the sample in this study was 50 students of semester 1 (one) majoring in Tadris Biology IAIN Kerinci. Based on the results of the study that the author conducted in semester 1 (one) majoring in Tadris Biology IAIN Kerinci obtained that through the test of matching the level of understanding of students more dominantly obtained a score below 54 with a percentage of 54%. Meanwhile, through the essay test, the level of understanding of students is more dominant in obtaining at ≤ 54 with a percentage of 90%. And for factors that affect the understanding of students obtained a percentage that is more dominant on the indicator of emotional intelligence that is with a percentage of 76.8 %. In the indicator of intellectual intelligence obtained a percentage of 72.3 % while in the indicator of learning obtained a percentage value of 73.2 %, and in the indicator of learning behavior obtained the lowest percentage value of 62.8 %.
{"title":"Level of understanding towards biology terms on biology education students' of IAIN Kerinci","authors":"Wahyuni Wahyuni, R. Ramadani, T. Tiara","doi":"10.26555/JOUBINS.V1I1.3739","DOIUrl":"https://doi.org/10.26555/JOUBINS.V1I1.3739","url":null,"abstract":"Biology is one of the fields of study that demands a high ability to think in understanding the subject matter contained in it, in this case scientific reading and good thinking skills become very important. This is because in biology learning there are many tables, diagrams and drawings, so it needs a special ability to understand it. Therefore, it is necessary to improve students' thinking skills in order to achieve optimal learning outcomes, because the ability to think will be the basic capital in improving other abilities. The research aims to determine the level of understanding of IAIN Kerinci students on terms in Biology and to know what factors influence the understanding of IAIN Kerinci Biology Tadris students in understanding terms in Biology. The population in this study was 975 students majoring in Tadris Biology IAIN Kerinci while the sample in this study was 50 students of semester 1 (one) majoring in Tadris Biology IAIN Kerinci. Based on the results of the study that the author conducted in semester 1 (one) majoring in Tadris Biology IAIN Kerinci obtained that through the test of matching the level of understanding of students more dominantly obtained a score below 54 with a percentage of 54%. Meanwhile, through the essay test, the level of understanding of students is more dominant in obtaining at ≤ 54 with a percentage of 90%. And for factors that affect the understanding of students obtained a percentage that is more dominant on the indicator of emotional intelligence that is with a percentage of 76.8 %. In the indicator of intellectual intelligence obtained a percentage of 72.3 % while in the indicator of learning obtained a percentage value of 73.2 %, and in the indicator of learning behavior obtained the lowest percentage value of 62.8 %.","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"2 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134259930","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}
Pub Date : 2021-06-23DOI: 10.26555/JOUBINS.V1I1.3728
M. Nurkanti, A. Mulyadi, Ristumesi Ristumesi, Guntur Janwidi Wibowo
This study aims to analyze student learning outcomes in the NHT model on respiratory system material. This research uses library data collection methods, reading and recording research materials (library research). Data collection used is through documentation study with data collection stages by editing and organizing. Data were analyzed using inductive and deductive techniques. The results of the study: 1) student learning outcomes showed an increase in student learning outcomes using the NHT model, 2) strategies in improving learning outcomes consisted of syntax, namely numbering, asking questions, thinking together and answering questions, 3) there were student learning outcomes before the model was applied. learning is low and after the application of the NHT model has increased, 4) the effectiveness of the NHT model is effective in improving student learning outcomes, 5) the use of the NHT model can provide opportunities for students to come up with ideas of knowledge in asking and arguing.
{"title":"A review on Numbered Head Together (NHT) learning model to improve biology learning outcomes","authors":"M. Nurkanti, A. Mulyadi, Ristumesi Ristumesi, Guntur Janwidi Wibowo","doi":"10.26555/JOUBINS.V1I1.3728","DOIUrl":"https://doi.org/10.26555/JOUBINS.V1I1.3728","url":null,"abstract":"This study aims to analyze student learning outcomes in the NHT model on respiratory system material. This research uses library data collection methods, reading and recording research materials (library research). Data collection used is through documentation study with data collection stages by editing and organizing. Data were analyzed using inductive and deductive techniques. The results of the study: 1) student learning outcomes showed an increase in student learning outcomes using the NHT model, 2) strategies in improving learning outcomes consisted of syntax, namely numbering, asking questions, thinking together and answering questions, 3) there were student learning outcomes before the model was applied. learning is low and after the application of the NHT model has increased, 4) the effectiveness of the NHT model is effective in improving student learning outcomes, 5) the use of the NHT model can provide opportunities for students to come up with ideas of knowledge in asking and arguing.","PeriodicalId":398638,"journal":{"name":"Journal on Biology and Instruction","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123998165","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}
Pub Date : 2021-06-23DOI: 10.26555/JOUBINS.V1I1.4019
Dea Noor Afifah, Rinaldi Rizal Putra
Students' perceptions of a subject or concept will have an impact on the perspective of students in facing the learning process. Perceptions built by students towards a lesson or concept must always be positive so that the learning outcomes achieved can be maximized. This study aims to determine the relationship between students' perceptions in the Biology subject with the learning outcomes of students across Biology interests at SMA Negeri 6 Kota Tasikmalaya. This research is a correlational study that links perceptions with student learning outcomes on the concept of ecosystems. The population of all class X IPS was five classes, and a sample of 1 class amounted to 34 students, namely in class X IPS 5 as participants with the sampling technique using purposive sampling. The class is sampled based on the consideration of the lowest average score compared to other classes. The research instruments used included questionnaires from other studies that were adapted and adapted to the ecosystem concept and multiple-choice tests to measure student learning outcomes. The student perception questionnaire consists of 28 statements. Each item has an alternative answer consisting of 4 choices, namely strongly agree (SS), agree (S), disagree (TS), strongly disagree (STS). While the learning outcome test was measured using multiple-choice questions, the ecosystem material consisted of 46 questions. The data analysis technique used was the bivariate correlation regression test. Prior to data analysis, the normality test and linearity test were performed first as a prerequisite test for analysis. The results showed that there was a relationship between perceptions and student learning outcomes on the ecosystem concept of 38.9% with a strong category.
学生对一个学科或概念的认知会影响学生面对学习过程的视角。学生对课程或概念的看法必须始终是积极的，这样才能最大限度地实现学习成果。本研究的目的是确定学生对生物科目的认知与SMA Negeri 6 Kota Tasikmalaya不同生物兴趣的学生学习成果之间的关系。本研究是一项相关性研究，将生态系统概念与学生学习成果联系起来。所有X IPS班的总体为5个班，每个班的样本为34名学生，即X IPS 5班的参与者，采用有目的抽样的抽样技术。该班级的抽样是基于与其他班级相比最低平均分的考虑。使用的研究工具包括来自其他研究的调查问卷，这些问卷经过调整和适应了生态系统的概念，以及用于衡量学生学习成果的多项选择测试。学生感知问卷由28个语句组成。每个问题都有一个备选答案，由4个选项组成，即强烈同意(SS)，同意(S)，不同意(TS)，强烈不同意(STS)。虽然学习成果测试使用多项选择题来衡量，但生态系统材料由46个问题组成。数据分析采用双变量相关回归检验。在进行数据分析之前，首先进行正态性检验和线性检验，作为分析的前提检验。结果表明，生态系统概念的认知与学生学习成果之间存在着38.9%的相关性，且具有很强的范畴性。
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