e-Journal of Hamzanwadi University
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Strategies toward the gold medal: Unveiling the anticipatory processes of junior high school olympiad students in geometry problem-solving
Get PDFThe National Science Olympiad (NSO) presents significant challenges for most junior high school students. This qualitative study examines the cognitive processes of gold medal-winning students by analyzing their anticipation strategies in solving geometry problems. Employing a descriptive-exploratory approach, we conducted problem-solving tests (using modified NSO geometry questions) and semi-structured interviews with a gold medalist from SMPN 2 Jember. Our findings reveal three distinct anticipation patterns: (1) positive internalized anticipation - intuitive conceptual application yielding correct solutions (e.g., establishing geometric relationships without procedural calculations in Problem 1), (2) negative internalized anticipation - rapid but erroneous assumptions (evident in angle miscalculations in Problem 2), and (3) analytical anticipation - systematic verification through logical reasoning (demonstrated in ∠POR ratio reevaluation). These results provide empirical evidence of how anticipation strategies influence olympiad performance. The study suggests practical interventions including: (1) diagnostic tools for anticipation profiling, (2) teacher training programs to cultivate positive anticipation patterns, and (3) curricular integration of analytical anticipation as metacognitive strategy. For olympiad preparation, we recommend scaffolded problem-solving tasks with structured reflection to transform negative anticipation patterns. Future research should investigate the domain-specificity of these anticipation processes across mathematical disciplines
Bugis ethnomathematics: Exploration of the sulapa eppa walasuji motif as a source of learning mathematics
Get PDFMathematics has historically been integrated into everyday life, and Indonesia's cultural heritage, such as the walasuji of the Bugis community, provides a valuable context for learning. This study explores activities involving mathematical concepts found in the making of walasuji. A descriptive qualitative method with an ethnographic approach was used. Data were collected through observation, documentation, and interviews. The findings reveal that making walasuji involves mathematical concepts such as translation, reflection, rotation, and straight-line equations, offering potential as contextual learning resources in schools. Additionally, the sulapa eppa walasuji motif embodies character values manifested in humans, namely intellectuality (acca), courage (warani), honesty (lempu), and wealth (sugi), referred to as sulapa eppa na taue (the philosophy of a quadrilateral human). Integrating cultural artifacts like walasuji into mathematics learning can enhance students' engagement, cultural awareness, and critical thinking skills. This research implies that future mathematics education should incorporate elements of local wisdom to create meaningful, relevant, and culturally responsive learning experiences, aligning mathematics more closely with students' everyday realities and cultural identities
Strategi Pengenalan Candi Muaro Jambi melalui Ornamen Arca Candi pada Kain Tradisional
Get PDFMuaro Jambi Temples is the largest cultural heritage site in Southeast Asia, holding immense historical and cultural potential. However, the low number of visitors and limited engagement from the younger generation indicate the need for innovative approaches to promote the site. This research aims to develop a strategy for applying the ornamental sculptures of Muaro Jambi Temples to traditional textiles as a medium to introduce and promote Jambi’s cultural heritage. The ornaments selected include sculptures of Prajnaparamita, Dwarapala, Makara, and motifs from the main temples such as Candi Tinggi, Candi Gumpung, and Candi Gedong. The research method employed is research and development (R&D) using a design thinking approach, which involves the stages of empathize, define, ideate, prototype, and test to create motifs that preserve cultural authenticity while being suitable for textile application. The process includes interviews with artisans, observation of traditional textile production, analysis of key challenges, brainstorming of simplified ornamental designs, prototype development, and phase evaluation with artisan and the local community. The resulting fabric prototype featuring ornamental motifs was tested during a cultural event at Muaro Jambi Temple and received positive feedback from visitors as an effective medium for introducing the history and cultural heritage of Jambi. This study demonstrates that the application of sculptural ornaments to traditional textiles not only enhances the aesthetic value of the product but also reinforces cultural identity and increases public interest in Jambi heritage. Government support and stronger collaboration with local artisan communities are crucial to ensure that these ornament inspired textiles become a widely recognized and sustainable cultural symbol
Analysis of Learning of Entrepreneurship Courses in the History Education Study Program Universitas Negeri Semarang
Get PDFThis research has specific objectives aimed at analyzing the mechanisms involved in the learning process of entrepreneurship courses, particularly in the context of the History Education program. The chosen research methodology is qualitative, employing a case study approach. Data collection was conducted through direct observation, interviews or interactive question-and-answer sessions, and documentation. The findings of this research reveal that the complex mechanisms within the entrepreneurship learning process in the History Education program have been effectively established, incorporating methods and learning media that are deemed to meet the necessary requirements. However, challenges identified during the learning process primarily concern time allocation and students' comprehension of entrepreneurship concepts. Thus, the entrepreneurship course implemented in the History Education program plays a significant role and is regarded as effective in fostering efforts to cultivate a new generation of young entrepreneurs.
Pengaruh Model Project Based Learning (PjBL) dalam Proyek Pengolahan Limbah Organik Terhadap Literasi Sains Siswa
Get PDFThle Effelct olf thle Projelct Balsed Lelarning (PjlBL) Modell iln Orgalnic Walste Procelssing Projelcts oln Stuldents' Scilentific Lilteracy. Thlis relsearch ils a qulantitative stuldy wilth a qulasi-expelrimental relsearch delsign iln thle forlm olf a Nonelquivalent Conltrol Groulp Delsign. Thle popullation olf thlis studly conlsisted olf 107 elighth-gralde stuldents alt SMlP N 1 Nilsam. Thle samlpling teclhnique useld wals pulrposive salmpling, wilth a totlal olf 32 stuldents iln elach cllass. Clalss VIII-A selrved als thle exlperimental cllass, imlplementing thle PjlBL modlel iln thle orgalnic walste procelssing projelct. Thle telchniques anld inlstruments folr dalta collelction iln thlis studly inlcluded writteln telsts, obselrvations, anld intlerviews. Thle collelcted dalta welre anlalyzed ulsing delscriptive anlalysis thlrough dalta collelction, dalta orgalnization, anld conlclusion dralwing. stuldy shlow thalt thle averlage prletest scorle obtalined by stuldents iln thle exlperimental cllass wals 54.21, whille thle avelrage postltest scorle wals 84.21, wilth aln N-Galin Scorle of 0.67, caltegorized als moderalte. Iln conltrast, thle averalge pretlest scorle iln thle conltrol clalss wals 57.65, alnd thle avelrage postltest scorle wals 68.43, wilth aln N-Galin Scorle olf 0.26, caltegorized als lolw. Thle higlher inlcrease iln stuldents' scielntific litelracy achielvement iln thle elxperimental clalss inldicates thlat thle imlplementation olf thle PjlBL modell iln tlhe orgalnic walste procelssing projelct hals aln imlpact oln stuldents' scielntific litelracy. Thlis finlding ils relinforced by tlhe relsults olf staltistical anlalysis usling aln inldependent salmple telst iln SPlSS Velrsion 27, whilch shlowed a silg (2-taliled) vallue olf 0.000 < 0.05, melaning thlat H₀ wals reljected alnd H₁ wals alccepted. Thlus, ilt caln ble conlcluded thalt thle PjlBL modell iln thle orgalnic walste procelssing projelct silgnificantly affelcts stuldents' scielntific lilteracy
Logistic Regression and Naïve Bayes Comparison in Classifying Emotions on Indonesian X Social Media
Get PDFEmotions are integral to human interaction and decision-making, often expressed on social media platforms like X, which provides valuable data for sentiment analysis. However, analyzing texts from X poses challenges due to informal language, slang, and unique textual features. This study compares Logistic Regression and Naive Bayes in classifying emotions from Indonesian tweets, addressing gaps in prior research by exploring feature extraction methods, data split ratios, and hyperparameter tuning. Data were collected from 100 Telkom University students, resulting in 8,978 tweets labeled into four emotions: Happy, Sad, Angry, and Fear. After preprocessing, feature extraction methods TF-IDF and Bag of Words (BoW) were applied. Models were trained and tested on 10%, 20%, and 30% data splits, and performance was evaluated using accuracy, precision, recall, and F1-score. Hyperparameter tuning was conducted for Logistic Regression using GridSearch. Results showed Logistic Regression outperformed Naive Bayes, achieving 73.49% accuracy compared to 70.27%, with BoW yielding superior results over TF-IDF. The 20% data split provided the best balance for training and testing. This research demonstrates the effectiveness of Logistic Regression and highlights the importance of tailored feature extraction and parameter optimization for emotion classification in informal text datasets, particularly for Indonesian tweets
Sistem Informasi Kepegawaian dan Penggajian Karyawan berbasis Web dengan Fitur Selfie dan Pemantauan Lokasi
Get PDFManual management of personnel and payroll data at Anna Bakery Pati faces obstacles in attendance accuracy, data processing efficiency, and transparency in payroll. This study aims to develop a web-based personnel and payroll information system with the main features of attendance validation using selfie photos and GPS, as well as automatic integration between attendance recording and salary calculation. The development method used is waterfall, which includes the stages of analysis, design, implementation, testing, and maintenance. Data were collected through observation, interviews with company owners, and user surveys using questionnaires. System testing uses the black box method to ensure system functionality and data analysis is carried out based on the results of user surveys. The results of our findings are a web-based personnel and payroll information system equipped with attendance validation features using GPS and selfies, automatic salary calculations, and integrated employee permit and leave management. In addition, the system provides a reporting feature to facilitate access to attendance and salary data. The test results show that the system can function well according to needs and is well received by the owner and employees of Anna Bakery. This system increases transparency in attendance recording, reduces the risk of fraud in attendance, and speeds up the payroll administration process. With this system, companies can optimize HR management more effectively
Pemetaan Lintasan Karir Alumni Berdasarkan Analisis Cluster: Kombinasi K-Means dan Reduksi Dimensi Autoencoder
Get PDFAlumni career mapping is a crucial aspect of evaluating and developing higher education programs. Cluster analysis, particularly the integration of k-means and autoencoder methods, has emerged as an effective solution for grouping complex and multi-dimensional alumni career data. This study aims to implement and assess the combination of k-means and autoencoder algorithms in alumni career mapping based on GPA, study duration, waiting time, job type, salary, job level, and field of study suitability. The autoencoder is employed to reduce dimensions, while k-means clusters alumni into groups based on the similarity of their career profiles. The data used in the cluster analysis is sourced from the tracer study. Pre-processing of the tracer study data is conducted through several stages, including cleaning, encoding, and normalization. The evaluation results indicate that the combination of k-means and autoencoder yields superior Silhouette and DBI scores. The Silhouette score with the autoencoder achieved 0.6112, while without it, the score was only 0.3956. The DBI value with the autoencoder is 0.566, whereas without it, the DBI reached 1.022. This cluster analysis effectively grouped the tracer study data into six clusters based on similarities in career profiles. The clustering results suggest that the formed clusters are more influenced by the alumni's job type and duration of study
The Pengaruh Transformational Leadership dan Quality of Work Life Terhadap Organizational Citizenship Behavior (OCB) Dimediasi Commitment Organizational Pada PT Rumah Bersama Seluler
No full textThent easetition in incretitives and res companie innovation. The of this study is to analyze influe of transformational lership and quality of work lifenship Bent as a me in PT Rumah Belules a quantitativectestionnaire rearch samples all eersama Ser, which is 98 rents. Thesults of these acced, nameade affent and organizational citizehavior. The of organizational commitmects organizational citizehavior. This shows that ee a high quality of work lifent, can incre ee implications of this study arersama Seasing the of OCB eeasing the factor
Green Advertising and It's Impact on Green Purchase Behavior among Gen-Z
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This study aims to identify the effect of green advertising and environmental quality awareness on green purchase behavior through environmental attitude as an intervening variable on Milo gen-Z consumers in Semarang City. This research uses quantitative methods. Data collection used a questionnaire instrument distributed online and analysis using Partial Least Square Structural Equation Modeling (PLS-SEM). The result showed that green advertising has no effect on green purchase behavior. Environmental quality awareness and environmental attitude have a positive effect on green purchase behavior. Green advertising and environmental quality awareness have a positive effect on environmental attitude. Therefore, Milo is expected to deepen the green advertising message and prove that they really want to commit to the environment, not just a marketing strategy. Future researchers are expected to explore other generation and other related variables, such as influencer campaigns, and the level of customer satisfy action in sustainable products.