Pub Date : 2023-12-18DOI: 10.26740/jcer.v7n2.p277-289
Isnanik Isna
21st century places students as an active subjects in the learning process. Electronic Student Worksheets based on guided inquiry and assisted by Augmented Reality (AR) and three-dimensional (3D) technology can facilitate the learning process that can be students centered in the era of rapid technological developments and the pandemic covid-19. The purpose of this research was to produce an electronic student worksheets based on guided inquiry assisted by AR and 3D on valid and practical human excretory system topic to be used in science learning at the VIII grade junior high school level. This study used research and development (R&D) methods with a 4D development model consisting of the stages defining, designing, developing, and disseminating, but in this study, there was no disseminate stage. The electronic student Wworksheets was tested on a limited basis to 32 students of class VIII G SMP Negeri 24 Malang. This study E- Student Worksheet Based on Guided Inquiry Assisted By Augmented Reality and Three Dimension on valid and practical human excretory system material used in science learning at the VIII grade junior high school level. The validity of the developed E- Student Worksheet obtained a percentage of 98.02% with a very valid category. The practicality of the E- Student Worksheet in terms of the assessment process, students obtained a percentage of 97% with a very practical category. Meanwhile, the practicality of E- Student Worksheet in terms of student responses obtained a percentage of 93.25% with a very practical category.
21 世纪将学生作为学习过程中的积极主体。基于引导式探究并由增强现实（AR）和三维（3D）技术辅助的电子学生作业单，可以促进以学生为中心的学习过程，以适应科技飞速发展的时代和大流行病 covid-19。本研究的目的是利用 AR 和 3D 技术制作基于引导式探究的电子学生工作表，该工作表涉及有效且实用的人体排泄系统主题，可用于初中八年级的科学学习。本研究采用了研究与开发（R&D）方法，其4D开发模型包括定义、设计、开发和传播阶段，但本研究没有传播阶段。电子学生作业单在马朗SMP Negeri 24中学八年级的32名学生中进行了有限的测试。本研究的电子学生作业单基于增强现实和三维辅助引导式探究，是初中八年级科学学习中使用的有效且实用的人体排泄系统材料。所开发的电子学生工作表的有效性为 98.02%，属于非常有效类别。在评价过程中，电子学生工作表的实用性为 97%，属于非常实用类。同时，电子学生工作表在学生回答方面的实用性获得了 93.25%，属于非常实用类。
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Pub Date : 2023-12-18DOI: 10.26740/jcer.v7n2.p243-251
Intan Diah Purwandari, M. Muntholib, A. Wijaya
This study aimed to investigate the impact of the Argument-Driven Inquiry instruction (ADI-Based Instruction) in thermochemistry on students' critical thinking skills. This study applied the one group pretest-posttest type of pre-experiment design. The subjects of this study were 71 eleven grade students of Public Senior High School of Ambulu Jember on academic year of 2022/2023. The instrument, namely the critical thinking ability test on thermochemistry, was developed by the researchers based on Ennis' critical thinking ability framework. This test consists of 10 valid items with a Cronbach's Alpha reliability of 0.782. The results showed that thermochemistry instruction carried out using ADI instructional model improve students' critical thinking skills with an N-gain of 0.731 (high category) and Cohen's d-effect size of 1.023 (large effect category) with an intermediate reliability of 0.619 (good categories). These results indicate that ADI-based instruction on thermochemistry can improve students' critical thinking skills. The implication of this study is that ADI-based instruction can be applied to other subjects who have the same characteristics of thermochemistry, namely having contextual, factual, conceptual, procedural, and metacognitive knowledge.
本研究旨在探讨在热化学课程中采用 "论证驱动探究教学"（ADI-Based Instruction）对学生批判性思维能力的影响。本研究采用了一组前测-后测的前实验设计。研究对象是安布鲁金边公立高级中学 2022/2023 学年十一年级的 71 名学生。研究工具，即热化学批判性思维能力测试，是由研究人员根据恩尼斯的批判性思维能力框架开发的。该测试由 10 个有效项目组成，Cronbach's Alpha 信度为 0.782。结果表明，采用 ADI 教学模式进行的热化学教学提高了学生的批判性思维能力，N-gain 为 0.731（高效应），Cohen's d效应大小为 1.023（大效应），中间信度为 0.619（好效应）。这些结果表明，基于 ADI 的热化学教学可以提高学生的批判性思维能力。本研究的意义在于，基于 ADI 的教学可应用于其他具有与热化学相同特征的学科，即具有情境知识、事实知识、概念知识、程序知识和元认知知识。
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Pub Date : 2023-06-21DOI: 10.26740/jcer.v7n1.p160-168
Galuh Isna Permata, Rusmini Rusmini
Abstract. This study aims to determine the validity, practicality, and effectiveness of teaching materials based on science process skills in hydrocarbon compound material for vocational students. This type of research is development research using 4-D models proposed by Thiagarajan. The targets of this study were 34 students of class XI SMK Negeri 5 Surabaya. The data obtained were analyzed using quantitative analysis methods. The results of the study concluded that science-based teaching skills on the material process of hydrocarbon compounds were declared valid with an average percentage value of 78.00%, expressed very practical with an average percentage interpretation value of 95.15%, and declared effective based on the results of the gain score test which states an increase in science process skills and completeness of student learning outcomes. Keywords: teaching materials, science process skills, hydrocarbon.
摘要本研究旨在确定高职学生碳氢化合物材料科学工艺技能教材的有效性、实用性和有效性。这类研究是Thiagarajan提出的使用4-D模型的开发研究。本研究的对象是泗水SMK Negeri 5班的34名学生。采用定量分析方法对所得数据进行分析。研究结果表明，烃类化合物物质过程的科学教学技能平均百分比值为78.00%，表示有效，平均百分比解释值为95.15%，表示非常实用，根据增益分数测试结果表明科学过程技能和学生学习成果的完整性有所提高，表示有效。关键词:教材，科学工艺技能，碳氢化合物。
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Pub Date : 2023-06-21DOI: 10.26740/jcer.v7n1.p152-159
Devita Diah Aprilia, Achmad Lutfi
This stydy is purposed to determine the effectiveness of learning chemistry on Hydrocarbon chapter by using the Tricky Test Game when Covid-19 appear based on completeness of learning outcomes. The research is a quantitative research. The research method used pre-experimental using one group pretest and posttest design. The sample in this study was 25 students of class XII in Bojonegoro Integrated High School as an experimental class chosen by cluster random sampling. The instrument used is a multiple choice test to do the pretest and posttest also response questionnaire. The results obtained that Chemistry Tricky Test is responded very well by students as an appropriate media game for learning chemistry daring on hydrocarbon material, there is a significant difference between the results of the pretest and posttest results and Classical completeness after using Chemistry Tricky Test reaches 100%. Then it can be concluded that the use of tricky test games can effectively improve the learning completeness in Bojonegoro Integrated High School.
本研究的目的是基于学习结果的完备性，在Covid-19出现时，使用Tricky Test Game来确定碳氢化合物章节化学学习的有效性。本研究为定量研究。研究方法采用单组前测和后测设计的预实验。本研究样本以Bojonegoro综合高中12班25名学生为实验班，采用整群随机抽样的方法选取。使用的工具是一个选择题测试来做前测和后测以及回答问卷。结果表明:《化学棘手测验》作为一种适合学生学习烃类材料化学实验的媒介游戏，学生反应良好，前测结果与后测结果有显著差异，使用《化学棘手测验》后的经典完整性达到100%。由此可以得出结论:在Bojonegoro综合高中，运用棘手的测试游戏可以有效地提高学生的学习完整性。
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Pub Date : 2023-06-21DOI: 10.26740/jcer.v7n1.p186-194
Dewi Murniati, Burhanudin Milama, Siti Aisah
This study aims to develop LKPD based on a scientific approach to the colloid concept for the practice of making green mussel shell crackers. This type of research was conducted using the Four-D model which was adapted from Thiagarajan which consisted of four stages: define, design, development, and disseminate. However, this research is limited only to the development stage. The LKPD eligibility criteria developed were reviewed from several aspects, namely the feasibility aspect of the content, the presentation feasibility aspect, the language aspect, the graphic aspect, the teacher and student responses. The product has been validated and continued with a limited trial phase was carried out on 16 high school/MA chemistry teachers in the Jabodetabek area and 36 students in class XII science at SMAN 4 Tangerang City. Data were collected using a validation questionnaire which was prepared using the Guttman scale and the teacher and student response sheets were compiled using a Likert scale. The results of the limited trial through the teacher's response questionnaire to the LKPD developed were 86%; and the results of the student questionnaire of 83.5% which are included in the very good category and are suitable for use in learning the colloid concept.
{"title":"DEVELOPMENT OF STUDENT WORKSHEET (LKPD) BASED ON A SCIENTIFIC APPROACH ON COLLOID CONCEPT: MAKING CRACKERS FROM GREEN MUSSEL (PERNA VIRIDIS) SHELL","authors":"Dewi Murniati, Burhanudin Milama, Siti Aisah","doi":"10.26740/jcer.v7n1.p186-194","DOIUrl":"https://doi.org/10.26740/jcer.v7n1.p186-194","url":null,"abstract":"This study aims to develop LKPD based on a scientific approach to the colloid concept for the practice of making green mussel shell crackers. This type of research was conducted using the Four-D model which was adapted from Thiagarajan which consisted of four stages: define, design, development, and disseminate. However, this research is limited only to the development stage. The LKPD eligibility criteria developed were reviewed from several aspects, namely the feasibility aspect of the content, the presentation feasibility aspect, the language aspect, the graphic aspect, the teacher and student responses. The product has been validated and continued with a limited trial phase was carried out on 16 high school/MA chemistry teachers in the Jabodetabek area and 36 students in class XII science at SMAN 4 Tangerang City. Data were collected using a validation questionnaire which was prepared using the Guttman scale and the teacher and student response sheets were compiled using a Likert scale. The results of the limited trial through the teacher's response questionnaire to the LKPD developed were 86%; and the results of the student questionnaire of 83.5% which are included in the very good category and are suitable for use in learning the colloid concept.","PeriodicalId":487442,"journal":{"name":"JCER (Journal of Chemistry Education Research)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136355798","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}
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