Concrete Model VS Virtual Model: Roles and Implications in Chemistry Learning

Mastering the topic of symmetry requires a good representational competence to smoothly understand, visualize, and manipulate the movement of three-dimensional objects. This literature study aimed to describe how concrete and virtual media can be utilized in improving students’ understanding of the topic. The study implies that the thinking process, cognitive tasks, interactions, mental models, and the completeness features displayed by the two models in identifying all symmetrical operations are the distinguishing factors of the effectiveness of the two formats in affecting students’ understanding. The study also implies that the virtual format will contribute to students’ understanding better than the concrete format does. However, the empirical study must be explored further to ensure the difference between the two formats

Interactive Instructional: Theoretical Perspective and Its Potential Support in Stimulating Students’ Higher Order Thinking Skills (HOTS)

In this disruptive era, the success of teaching approaches that encourage students’ creativity and innovation is presented in students’ attained high-order thinking skills (HOTS). Consequently, the attainment of HOTS aids someone to avert negative things since they are capable of analyzing and evaluating their obtained information. Besides, HOTS also facilitates the process of students attaining knowledge, generating questions, properly interpreting information, and drawing a conclusion for an issue, with solid reasons, an open mind, and an effective means to communicate it. This article presents a theoretical study on the interactive instructional learning model and identifies its potential in accelerating students’ HOTS. It aims to introduce the interactive instructional model in chemistry learning. Further, this model can be adopted in a study with a more intensive evaluation of its empirical contribution to chemistry learning. The learning syntax for this model has been formulated for the Basic Chemistry Class 1.ReferencesBrookhart, S. M. (2010). How To Assess Higher Order thinking Skills in your classroom. Alexandria.Fearon, D. D., Copeland, D., & Saxon, T. F. (2013). The Relationship Between Parenting Styles and Creativity in a Sample of Jamaican Children. Creativity Research Journal, 25(1), 119–128. https://doi.org/10.1080/10400419.2013.752287Ghani, I. . B. ., Ibrahim, N. ., Yahaya, N. ., & Surif, J. (2017). Enhancing students’ HOTS in laboratory educational activity by using concept map as an alternative assessment tool. Chemistry Education Research and Practice, 18(4), 849–874. https://doi.org/10.1039/C7RP00120GHabiddin, H., & Page, E. M. (2020). Probing Students’ Higher Order Thinking Skills Using Pictorial Style Questions. Macedonian Journal of Chemistry and Chemical Engineering, 39(2), 251–263. https://doi.org/10.20450/mjcce.2020.2133Habiddin, H., & Page, E. M. (2021). Examining Students’ Ability to Solve Algorithmic and Pictorial Style Questions in Chemical Kinetics. International Journal of Science and Mathematics Education, 19(1), 65–85. https://doi.org/10.1007/s10763-019-10037-wHabiddin, H., & Page, E. M. (2018). Measuring Indonesian chemistry students’ Higher Order Thinking Skills (HOTS) in solving chemical kinetics questions. In Y. Rahmawati & P. C. Taylor (Eds.), Empowering Science and Mathematics for Global Competitiveness; Proceedings of the Science and Mathematics International Conference (SMIC 2018) (pp. 215–222). CRC Press Taylor & Francis.Heong, Y. M., Sern, L., Kiong, T. T., & Mohamad, M. (2016). The Role of Higher Order Thinking Skills in Green Skill Development.Herunata, H., Widarti, H. R., Amalia, R., Sulistina, O., Habiddin, H., & Rosli, M. S. bin. (2020). An analysis of higher order thinking skill (HOTs) in chemistry national examination for senior high school. 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Innovations in Education and Teaching International, 46(2), 147–160.Narciss, S. (2007). Feedback Strategies for Interactive Learning Tasks. In Handbook of Research on Educational Communications and Technology. Routledge. https://doi.org/10.4324/9780203880869.ch11Paideya, V., & Sookrajh, R. (2010). Exploring the use of supplemental instruction: Supporting deep understanding and higher-order thinking in Chemistry. South African Journal of Higher Education, 24(5), 758–770.Pannells, T. C., & Claxton, A. F. (2008). Happiness, creative ideation, and locus of control. Creativity Research Journal, 20(1), 67–71. https://doi.org/10.1080/10400410701842029Phakiti, A. (2018). Assessing Higher-Order Thinking Skills in Language Learning. In The TESOL Encyclopedia of English Language Teaching (pp. 1–7). https://doi.org/doi:10.1002/9781118784235.eelt0380Proske, A., Körndle, H., & Narciss, S. (2012). Interactive Learning Tasks BT  - Encyclopedia of the Sciences of Learning (N. M. Seel (ed.); pp. 1606–1610). Springer US. https://doi.org/10.1007/978-1-4419-1428-6_1100Resnick, L. B. (1987). Education and Learning to Think. National Academy Press.Toledo, S., & Dubas, J. M. (2016). Encouraging Higher-Order Thinking in General Chemistry by Scaffolding Student Learning Using Marzano’s Taxonomy. Journal of Chemical Education, 93(1), 64–69. https://doi.org/10.1021/acs.jchemed.5b00184Zohar, A. (2004). Elements of Teachers’ Pedagogical Knowledge Regarding Instruction of Higher Order Thinking. Journal of Science Teacher Education, 15(4), 293–312. https://doi.org/10.1023/B:JSTE.0000048332.39591.e3Zohar, A., & Dori, Y. J. (2003). Higher Order Thinking Skills and Low-Achieving Students: Are They Mutually Exclusive? Journal of the Learning Sciences, 12(3), 145–181. https://doi.org/10.1207/S15327809JLS1202_1Zoller, U, & Dori, Y. J. (2002). Algorithmic, LOCS and HOCS (chemistry) exam questions: performance and attitudes of college students. International Journal of Science Education, 24(2), 185–203. https://doi.org/10.1080/09500690110049060Zoller, Uri, & Pushkin, D. (2007). Matching Higher-Order Cognitive Skills (HOCS) promotion goals with problem-based laboratory practice in a freshman organic chemistry course. Chemistry Education Research and Practice, 8(2), 153–17

PENGOLAHAN LIMBAH SAYUR DESA NGADIREJO (TENGGER) SEBAGAI PUPUK ORGANIK CAIR GUNA MENUJU DESA MANDIRI KREATIF

Abstrak Ngadirejo adalah desa kawasan Tengger yang merupakan desa penghasil sayur wortel, kentang, kubis, sawi, dan bawang dengan jumlah masing-masing mencapai ±20 ton setiap masa panen. Dalam masa panen, 5-20% dari total panen adalah limbah sayur yang disebabkan oleh cacat pada sayur, dan sisa dari sortiran yang tidak bisa dikonsumsi oleh masyarakat. Rendahnya pengetahuan masyarakat terhadap pengolahan limbah organik menyebabkan limbah sayur menjadi penyumbang sampah terbesar di kawasan Tengger. Tujuan program pengabdian ini adalah mengurangi populasi sampah organik Desa Ngadirejo  dengan cara mengolah limbah sayur sebagai pupuk organik cair (POC). Program ini dilakukan dalam bentuk sosialisasi, pelatihan, praktek pengolahan limbah sayur sebagai POC terhadap gabungan kelompok tani (GAPOKTAN), analisis kandungan unsur pada POC dalam lingkup laboratorium, serta pendampingan aplikasi POC sebagai pengganti pupuk kimia (PK) dalam penanaman sayur. Hasil program ini terbukti dapat menurunkan jumlah sampah sayur secara drastis, meningkatkan pengguna POC dan secara kualitatif produk POC memiliki unsur hara lebih banyak dari PK. Abstract Ngadirejo is a village in the Tengger area that produces ± 20 tons each of carrots, potatoes, cabbage, mustard greens, and shallots. During the harvest period, 5-20% of the total harvest is vegetable waste caused by defects in the vegetables, and the rest of the sort can no longer be consumed. The low level of public knowledge about organic waste processing has made vegetable waste the biggest contributor to waste in Tengger. This program aims to reduce the organic waste population in Ngadirejo by processing vegetable waste as liquid organic fertilizer (LOF). This program is carried out in form of socialization, training, and practice of processing vegetable waste as LOF to farmer, elemental analysis within the scope of the laboratory, and monitoring the application of LOF as a substitute for chemical fertilizers (CF) on vegetable cultivation. The results of this program have been shown to drastically reduce the amount of vegetable waste, increase LOF users, and qualitatively LOF products have more nutrients than CF

Keefektifan Pembelajaran Interkoneksi Multipel Representasi dalam Mengurangi Kesalahan Konsep Siswa pada Materi Stoikiometri

Stoichiometry is one of the basic topics in Chemistry. The topic was abstract and related to other concepts so that many students find it difficult to learn, and experience misconceptions in this concept. Misconceptions in stoichiometry can be corrected by Interconnection Multiple Representation (IMR) learning. The purpose of this study was to determine the effectiveness of the IMR learning to correct misconceptions students in stoichiometric concept. The study design is a one-group pretest-posttest design. The research data such as the percentage of students who have misconceptions before and after IMR learning. The results showed IMR learning were effective to improve students' misconceptions in stoikiomteri.Stoikiometri merupakan salah satu materi dasar dalam ilmu kimia yang bersifat abstrak dan saling berkaitan dengan materi kimia lain sehingga tidak sedikit siswa merasa kesulitan dalam mempelajarinya, dan mengalami kesalahan konsep dalam materi ini. Kesalahan konsep dapat diperbaiki dengan pembelajaran Interkoneksi Multipel Representasi (IMR). Tujuan penelitian ini adalah untuk mengetahui keefektifan IMR dalam memperbaiki kesalahan konsep siswa dalam materi stoikiometri. Rancangan penelitian adalah one-group pretest-postest design. Data penelitian berupa persentase siswa yang mengalami kesalahan konsep sebelum dan sesudah pembelajaran IMR. Hasil penelitian menunjukkan pembelajaran IMR efektif dalam memperbaiki kesalahan konsep siswa pada materi stoikiomteri

The application of silica-cellulose material as heavy metal adsorbent on laboratory wastewater

Environmental pollution is a complex problem because waste is generated in all areas of life. If not handled properly, laboratory waste can pollute and endanger the environment. Laboratory waste containing heavy metals such as Cadmium, Chromium, Nickel, and Zinc is hazardous if it pollutes the environment. An easy and inexpensive method of treating heavy metal waste is adsorption. This research applies silica-cellulose material as heavy metal adsorbent in laboratory waste. Variations in contact time were used to measure the adsorbent capacity and adsorbent effectiveness on heavy metals Cadmium, Chromium, Nickel, and Zinc. The results showed that the contact time affected the adsorption capacity and the adsorption effectiveness of silica-cellulose on heavy metal content in laboratory waste. For Cd and Zn metals, the highest adsorption capacity at the contact time of 1 h with adsorption effectiveness values above 90%. Whereas for Cr and Ni metals, the highest adsorption capacity was at the contact time of 3 h with different values of adsorption effectiveness. For Cr metal, almost entirely can be absorbed well, while Ni metal is only half of the total metal can be absorbed

Pemanfaatan Pigmen Tanaman sebagai Pewarna Alami dalam Edukasi Pembuatan Lipstik

Lipstik merupakan kosmetik dasar kaum hawa yang membuat wajah penggunanya menjadi segar berseri. Komponen lipstik yang beraneka macam merupakan bahan sintetis yang dapat membahayakan kesehatan. Di alam tersedia banyak pigmen alami yang dapat digunakan sebagai bahan pewarna yang aman bagi pengguna. Oleh sebab itu diperlukan edukasi kepada masyarakat untuk membuat lipstik yang berbahan dasar pigmen alami. Tujuan dari pengabdian kepada masyarakat ini adalah untuk mengedukasi masyarakat supaya mempunyai wawasan tentang lipstik, komponen yang mendasari, dan memberi keterampilan kepada masyarakat untuk membuat lipstik menggunakan pigmen tanaman. Diharapkan dari kegiatan ini, masyarakat dapat mengembangkannya sebagai produk unggulan UMKM. Sasaran kegiatan ini adalah kelompok ibu PKK yang umumnya berprofesi sebagai ibu rumah tangga. Metode pengabdian meliputi penyajian materi dan pelatihan. Hasil dari kegiatan ini adalah semua peserta sangat antusias terhadap pelatihan edukasi pembuatan lipstik dan berharap agar dilakukan pelatihan tentang produk kosmetik lainnya. Kata kunci— Lipstik, Pigmen alami, Ibu PKK wilayah Malang Abstract Lipstick is a basic cosmetic for women that makes the user’s face look fresh and radiant. The various components of lipstick are synthetic materials that can be harmful to health. In nature, many natural pigments can be used as safe dyes for users. Therefore, educating the public about making lipsticks made from natural pigments is necessary. This community service aims to inform the public so that they have insight into lipsticks. The underlying components provide the community with skills to make lipstick using plant pigments. From this activity, the community can develop it as a superior product for small-medium enterprises (SMEs). This activity targets a group of women (PKK) who generally work as housewives. The service method includes the presentation of materials and training. The result of this activity is that all participants are enthusiastic about the educational training on lipstick making and hope there will be training on other cosmetic products. Keywords— Lipstick, Natural pigments, Women society in Malan

Gerakan Busaponik Sederhana untuk Mewujudkan Kelurahan Candirenggo yang Produktif, Kreatif, dan Inovatif

Kesejahteraan masyarakat dapat diukur dari beberapa aspek salah satunya dari ketahanan pangan serta tingkat ekonomi masyarakat. Sebagai upaya mewujudkan hal tersebut, memberikan solusi dengan menggalakkan program kerja Gerakan BuSaPonik Sederhana dengan melibatkan organisasi masyarakat yaitu Pemberdayaan dan Kesejahteraan Keluarga (PKK). Program kerja ini dapat ikut menyukseskan tiga program PKK seperti program pangan, kelestarian lingkungan hidup, dan perencanaan sehat. Selain itu, kegiatan ini dapat menjadikan ibu-ibu PKK lebih produktif dan kreatif dalam memenuhi kebutuhan keluarganya masing-masing. Bahkan lebih lanjut, dapat meningkatkan ekonomi keluarga dan masyarakat Candirenggo melalui budidaya sayuran dari BuSaPonik.  Kata kunci— BuSaPonik Sederhana, budidaya sayuran, hidroponik sederhana Abstract Community welfare can be measured from several aspects, one of which is food security and the economic level of the community. In an effort to realize this, provides a solution by promoting the Simple BuSaPonik Movement work program by involving community organizations, Empowerment and Family Welfare (PKK). This work program can contribute to the success of three PKK programs such as the food program, environmental sustainability, and healthy planning. In addition, this activity can make PKK member (mothers) more productive and creative in meeting the needs of their respective families. Even further, it can improve the family and community economy of Candirenggo through the cultivation of vegetables from BuSaPonik. Keywords— BuSaPonik Simplified, vegetable cultivation, simple hydroponics, Kelurahan Candirengg

Improving Student’s Motivation and Learning Outcomes Through Genetics E-Module

The purpose of this study was to know the impact of the Genetics E-module to improve students’ motivation and learning outcomes during the learning process. The method applied was Research and Development, limited until the implementation stage, using the quasi-experiment method with one group pretest-posttest. The motivation instruments were modified questionnaire by Keller with ARCS model, consist of 4 aspects including attention, relevance, confidence, and satisfaction. The population were all of the students from class of 2017 in Biology Education department, Tribhuwana Tunggadewi State University. The pretest was held to know students’ motivation and learning outcomes when using a handout from the lecturer, while the posttest was to know students’ motivation and learning outcomes when using Genetics E-module. Data were collected from the motivation questionnaire and test. After using E-module, there were 27 students with high (71,91 ≤ x < 86), 18 students with medium (57,82 ≤ x < 71,91) and 5 students with low criterion (43,74 ≥ x) of motivation, and there were  58% students who passing the grade in Genetics test. Based on the data analysis, E-module was feasible to be used to improve students’ motivation and also learning outcomes in the Biology Education department

Analisis Faktor–Faktor Yang Mempengaruhi Tingkat Pengangguran Di Jawa Tengah Tahun 2011-2015

The study was entitled "Analysis of Factors Affecting Unemployment Rate in Central Java Province Year 2011-2015". This study aims to analyze and know how big the influence of JAK, IPM, UMR and Inflation, on unemployment in Central Java in 2011-2015. The analysis tool uses panel data regression. Panel data is a mix of cross-sections covering thirty-five districts and cities in Central Java and a five-year time series - 175 observations. The results of this study show that cross section Random Effect Method (REM) is the best panel data regression model, while the time series Fixed Effect Method (FEM) is the best data panel regression model. Based on the results of the analysis found that the UMR has a significant negative effect on unemployment in cross section. While JAK has a significant negative effect on unemployment in time series.For that the government should provide a lot of training and supported policies to reduce unemployment in Central Java. Keywords: Unemployment, JAK, HDI, UMR and Inflatio