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This study aims to determine the validity, practicality and effectiveness of biology learning modules based on local potential of Lake Laut Tawar Takengon Ikan Depik (Rasbora Tawarensis) on Vertebrate Material. This study used the Research and Development (R&D) research method based on the Thiagarajan methodology with four stages including define, design, devolepment and disseminate stages. This research was carried out from September to January 2022 with a sample of 26 students from SMA N 8 Takengon Unggul. The results showed that the biology learning module based on the local potential of Lake Laut Tawar Takengon Ikan Depik (Rasbora Tawarensis) is very suitable for use in learning. The validity test was tested by material experts and media experts. The material expert test was obtained by 81.37% and the media expert test was obtained by 81.25% and was included in the very feasible category to be used in learning. The practicality test was tested based on the responses of the biology teacher at SMA N 8 Takengeon Unggul and the responses of 26 students who were seen based on the response questionnaire sheet. The teacher's response test was obtained at 98.23% and the student's response test was 93.6% in the practical category used in the learning process. Testing the effectiveness of obtaining a score of 100% improves student learning outcomes during learning, this is evidenced by students' answers when tested based on the post-test questions given. So it can be concluded that the biology learning module based on local potential of Lake Laut Tawar Takengon Depik Fish (Rasbora Tawarensis) on Vertebrate Material is effective and appropriate for use in learning. Keywords: Module, Local Potential, Depik Fish

This Regular Real Work Lecture (KKN) is an activity based on community empowerment and the real form of students in implementing the Tri Dharma of Higher Education, namely in the aspect of community service. With this Regular Real Work Lecture (KKN) as a form of our service in Batu Rata Village, Bangun Purba District, Deli Serdang Regency. This research was conducted in Hamlet 03 Batu Rata village. This method uses a qualitative method in which we conduct observations, interviews and documentation. This study aims to determine the role of Regular Real Work Lectures (KKN) in various fields including the field of Education which we carry out in Batu Rata Village. We see very serious problems in the field of education, including in terms of reading there are still some children who are illiterate, cannot write and count, this is due to the lack of teaching staff and the lack of parental care for their children who are illiterate and numbers. This service is carried out face-to-face with the child. The results of this study indicate that the Regular Community Service Program is a form of our service to the community in order to continue to increase the enthusiasm for learning and help children understand the lessons that have been given. Keywords: Children, KKN, Education.

Desain atau perancangan merupakan suatu proses perencanaan dan pembuatan sebuah objek baru yang dilakukan dengan memperhatikan berbagai aspek yang meliputi keindahan, kesimetrian, dan keestetikaan serta berbagai aspek lainnya. Proses desain dapat juga disebut sebagai visual problem solving yang memasukkan pengorganisasian, penciptaan, dan pengevaluasian untuk menghasilkan sebuah karya yang diinginkan. Piagam penghargaan adalah suatu media yang memuat tulisan berupa pernyataan resmi dan digunakan sebagai bentuk penghargaan terhadap prestasi atau pencapaian seseorang. Piagam penghargaan tercipta melalui proses perancangan desain terlebih dahulu, dimana semua ide-ide disampaikan melaui pencipataan objek-objek yang ada pada desain. Dalam merancang desain piagam dapat diterapkan konsep geometri transformasi untuk mendapatkan perubahan letak dan penyajian yang didasarkan pada beberapa jenis-jenisr transformasi, sehingga nantinya akan dihasilkan desain yang sesuai dengan kebutuhan dan keinginan. Jenis-jenis geometri transformasi yang digunakan meliputi translasi, rotasi, refleksi, dan dilatasi. Konsep geometri transformasi ini dimanfaatkan dalam perancangan dan penentuan desain piagam untuk diberikan kepada pegawai BPKP Perwakilan Aceh yang berprestasi.. Desain atau perancangan merupakan suatu proses perencanaan dan pembuatan sebuah objek baru yang dilakukan dengan memperhatikan berbagai aspek yang meliputi keindahan, kesimetrian, dan keestetikaan serta berbagai aspek lainnya. Proses desain dapat juga disebut sebagai visual problem solving yang memasukkan pengorganisasian, penciptaan, dan pengevaluasian untuk menghasilkan sebuah karya yang diinginkan. Piagam penghargaan adalah suatu media yang memuat tulisan berupa pernyataan resmi dan digunakan sebagai bentuk penghargaan terhadap prestasi atau pencapaian seseorang. Piagam penghargaan tercipta melalui proses perancangan desain terlebih dahulu, dimana semua ide-ide disampaikan melaui pencipataan objek-objek yang ada pada desain. Dalam merancang desain piagam dapat diterapkan konsep geometri transformasi untuk mendapatkan perubahan letak dan penyajian yang didasarkan pada beberapa jenis-jenisr transformasi, sehingga nantinya akan dihasilkan desain yang sesuai dengan kebutuhan dan keinginan. Jenis-jenis geometri transformasi yang digunakan meliputi translasi, rotasi, refleksi, dan dilatasi. Konsep geometri transformasi ini dimanfaatkan dalam perancangan dan penentuan desain piagam untuk diberikan kepada pegawai BPKP Perwakilan Aceh yang berprestasi..

Penelitian ini bertujuan untuk memperoleh deskripsi tentang literasi matematika siswa kelas VIIIA SMP Negeri 19 Palu pada materi statistika. Jenis penelitian ini adalah deskriptif dengan pendekatan kualitatif. Subjek penelitian ini adalah siswa kelas VIIIA SMP Negeri 19 Palu yang memiliki gaya belajar visual dengan inisial ID dan auditorial dengan inisial FR. Pengumpulan data dilakukan dengan melalui tes tertulis dan wawancara. Hasil penelitian ini menunjukkan bahwa siswa yang memiliki gaya belajar visual (ID) dalam menyelesaikan soal statistika yaitu: (1) ID mengidentifikasi setiap informasi yang diketahui dan ditanyakan dalam soal; (2) ID menuliskan data-data yang diketahui dengan menggunakan simbol dan menuliskan rata-rata dalam bentuk kalimat verbal; (3) ID menggunakan rumus rata-rata atau mean dan mensubtitusi data yang sesuai; (4) ID menuliskan kesimpulan dengan benar. Kemudian, hasil penelitian ini juga menunjukkan bahwa siswa yang memiliki gaya belajar auditorial (FR) dalam menyelesaikan soal statistika yaitu: (1) FR mengidentifikasi setiap informasi yang diketahui dan ditanyakan dalam soal; (2) FR menuliskan data-data yang diketahui dan rata-rata dalam bentuk kalimat verbal; (3) FR menggunakan rumus rata-rata atau mean dan mensubtitusi data yang sesuai; (4) FR menuliskan kesimpulan dengan benar.

Artikel ini bertujuan untuk mengetahui metode pembelajaran apa yang diambil oleh para guru dalam mengajarkan anak selama masa pandemi Corona Virus Disease 19. Secara khusus penilaian yang diambil bukan hanya dari nilai-nilai tugas yang diberikan oleh dewan guru, bahkan penilaian karakter juga dapat dilihat pengembangannya. Semisal saat mengerjakan ujian harian para siswa dilarang mencontek baik dengan buku maupun handphone. Secara tidak langsung peran orang tua juga membantu para dewan guru untuk membantu jalannya pembelajaran selama Pandemi Covid 19. Secara umum peran orang tua yang muncul adalah sebagai pembimbing, pendidik, penjaga, pengembang dan pengawas. Diperlukan kerja sama antara kedua belah pihak agar tidak adanya kesalah pahaman dalam pembelajaran jarak jauh selama Pandemik Covid 19. Kata kunci : Guru, Metode, peran orang tua, masa pandemic TEACHER’S EXPERIENCE DURING THE COVID-19 PANDEMIC Abstract This is article aims to find out what methods are taken by teacher in teaching children during the Covid Pandemic 19. In particular the assessment taken not only from the values of assignments given by the teacher board, even the assessment of character can also be seen its development. Such as when taking daily tests students are prohibited from cheating both with books and mobile phones. Indirectly the role of parents also helped the council of teachers to assist the course of learning during the covid pandemic 19. In general the role of parents who appear is as a guide, educator, guardian, developer, and supervisor. Cooperation is needed between the two parties so that there are no misunderstanding in distance learning during the covid pandemic 19. Keywords : teacher, method, parents role, pandemic era

Riset ini dilakukan bertujuan untuk menganalisis minat belajar dan kemampuan belajar pada mahasiswa terhadap mata kuliah struktur aljabar grup. Dengan menggunakan metode penelitian kuantitatif deskriptif. Subjek dalam penelitian ini adalah mahasiswa dan mahasiswi pendidikan matematika semester V, langkah–langkah yang digunakan didalam penelitian ini untuk menganalisis minat dan kemampuan belajar tersebut dengan cara menggunakan uji validitas, uju reliabilitas, uji normalitas dan uji reabilitas. dari hasil uji tersebut ternyata minat belajar terhadap kemempuan belajar mempunyai hubungan yang positif dan signifikan dengan kemampuan belajar terhadap struktur aljabar grup.

This study aims to describe the creative thinking ability of upper group students in solving Ring Algebra Structure questions on the prime ideal and maximum ideal material. This research uses descriptive qualitative research. The research subjects are students of Mathematics Education-2 Semester VI who have taken the Ring Algebra Structure course. The research subjects are three (3) students of Mathematics Education-2 Semester VI who have high mathematical abilities based on test results in the form of assignments on Ideal material. The instruments used in the study include: 1) Test; 2) Interview guide; and 3) Documentation. Based on the results of research and discussion, the findings resulted that the thinking ability of upper-class students had fulfilled all aspects of creative thinking, namely fluency, flexibility, and originality. The subject has been able to explain all the indicators that have been set very well and precisely. Subjects have also been able to prove prime ideals or maximum ideals or not both and can identify examples and non-examples of prime ideals and maximum ideals through high-level elaboration and analysis carried out by the subject. Subjects are also very able to describe Lattice diagrams on each question and can determine the subring of a ring. It's just that there is a uniqueness of the worksheet between MS, ZB, and HF. But overall the subject has fulfilled the creative thinking aspect. Thus, it can be concluded that the upper group students can be categorized at level 4, which is very creative.

Berpikir kritis merupakan salah satu kemampuan yang sangat penting peserta didik, khususnya mahasiswa agar dapat menghubungkan persoalan atau informasi yang diperolehnya melalui penyelidikan dan penkajian secara sistematis sehingga menghasilkan ide atau solusi untuk pemecahan masalah dalam pembelajaran matematika. Penelitian ini merupakan penelitian deskriptif eksploratif dengan pendekatan kualitatif yang bertujuan menganalisis atau menggambarkan kemampuan berpikir kritis matematika mahasiswa jurusan pendidikan matematika pada materi daerah integral dan field. Indikator yang digunakan untuk menggambarkan kemampuan berpikir kritis matematika mahasiswa antara lain kemampuan identifikasi masalah, analisis, sintesis, inferensi dan evaluasi. Teknik pengumpulan data dalam penelitian ini diperoleh secara online menggunakan media google form. Instrumen yang digunakan dalam penelitian ini adalah angket tentang bagaimana pandangan mereka mengenai pemahaman materi daerah integral dan field yang terdiri dari 6 pertanyaan. Kemampuan berpikir kritis matematika mahasiswa jurusan pendidikan matematika pada mata kuliah stuktur aljabar ring materi daerah integral dan field tergolong rendah. Hal ini disebabkan karena dari uraian karakteristik kemampuan berpikir kritis matematika subjek pada masing-masing predikat diperoleh bahwa secara umum mahasiswa hanya mampu memenuhi sebagian indikator berpikir kritis atau belum mampu memenuhi seluruh indikator berpikir kritis. Faktor-faktor yang mempengaruhi kemampuan berpikir kritis matematika mahasisa pada materi daerah integral dan field tersebut antara lain : sistem pembelajaran daring yang kurang efektif, penguasaan konsep-konsep daerah integral dan field dan materi prasyarat (kemampuan awal) serta penerapannya, dan kurangnya motivasi serta minat belajar mahasiswa.

Riset ini bertujuan untuk mengidentifikasi kelayakan produk bahan ajar Struktur Aljabar I dalam menanggulangi kesulitan belajar mahasiswa pendidikan matematika disalah satu universitas kota Medan. Tipe riset ini ialah riset pengembangan (development research) dengan memakai model 4-D Thiagarajan yang dimodifikasi jadi 4 sesi yakni define, design, develop, serta disseminate. Sampel dalam riset ini berjumlah 242 mahasiswa. Hasil dalam riset ini yaitu produk bahan ajar Struktur Aljabar I dikatakan layak digunakan dalam menanggulangi kesulitan belajar mahasiswa pendidikan matematika karena memenuhi 3 kriteria, yakni: valid, praktis, serta efektif. Sehingga bahan ajar dapat digunakan untuk perkuliahan Struktur Aljabar I berikutnya.

Lubis M, Harahap MB, Ginting MHS, Maysarah S, Gana A. 2018. Short Communication: The effect of ethylene glycol as plasticizer against mechanical properties of bioplastic originated from jackfruit seed starch and cocoa pod husk. Nusantara Bioscience 10: 76-80. The addition of elasticity of bioplastic from jackfruit seed starch reinforced with cacao pod husk was studied using ethylene glycol as plasticizer. This study aimed to investigate the effect of addition of ethylene glycol as plasticizer against mechanical properties of bioplastic from jackfruit seed starch and cacao pod husk. Bioplastic was made by casting method at temperature 88.1 ̊C with ratios of cacao pod husk as fillers and jackfruit seed as starch were 9:1, 8:2, 7:3, 6:4, and 5:5 (w/v). The variations of ethylene glycol were from 0.2 (v/w) to 0.4 (v/w). The result showed that ethylene glycol could increase the mechanical properties of bioplastic. The best condition of bioplastic was achieved at ratio 7:3 in addition of ethylene glycol was 0.2 (v/w) with tensile strength of 15.40 MPa and elongation at break 2.39%. The result of FT-IR analysis indicated that bioplastics consisted of O-H group, C-H group, C=O group and C-O group. The SEM images demonstrated the bioplastic with cacao pod husk as filler and ethylene glycol as plasticizer had the fracture surfaces with the compact structure compared to that bioplastic without fillers.

Human basically only know a science only from experts, without realizing the source of that knowledge. Science is the application of the Qur’an and Hadith is the source of knowledge. This study determine the integration of the functions of the sensory system according to the integrated scientific view of the Qur'an and hadith. The method used in this study is a qualitative method with the producing descriptive data in the words obtained when looking for references from literature sources with a literature review approach (Library Research). The results of this study indicate that the function of the human sensory system according to science is only in the essence of hearing, seeing, smelling, feeling and touching. In science the human senses function as producers of perception and even as facilities for developing knowledge about something. Meanwhile, according to the Qur'an and hadith, the function of the human sensory system is as a facility for increasing the faith and piety of a servant to Allah SWT. Based on science, the Qur'an and hadith both function the human senses as a complementary facilities in developing knowledge so that a person further increases the essence of Allah presence in carrying out sensory functions.

The aims at this study to: (1) Analyze the physical properties of soil on peatlands, (2) Determine peatland management efforts. This research was conducted at Jalan Suka Maju (BRG Assisted Land) in Liang Anggang District, Banjarbaru City Government, South Kalimantan Province. The results of the analysis of soil physical properties, the results of bulk density have low values, soil porosity has a higher value, particle density has a low value, soil permeability has a high value, the consistency of existing soil is soft and the maturity of sapric peat soil, Efforts in peatland management are carried out using agroforestry patterns such as (a) Keeping peat water from quickly descending from the land as the system used is closed land, (b) Making mounds for agroforestry patterns does not exceed 25-30 cm with a base width of 30-40 cm, (c) Using woody plants such as prince, galam, candlenut, petai, jengkol, besides agricultural/fruit crops such as oranges, rambutan, sapodilla, onion, pineapple, banana, chili, and corn. And the addition of fertilizer, applying lime to neutralize peat soils.Keywords: Soil Physical Characteristics, Peatlands, Management Efforts

Oil palm empty fruit bunchesn are waste from palm oil mill utilization is still limited. Lignin utilization of oil palm empty fruit bunhes made of natural adhesive manufacture. Making adhesive is carried out in several stages namely the manufacture of powder oil palm empty fruit bunches free extractives, lignin isolation, the manufacture of sodium lignosulfonate, sodium purification lignosulfonate and the manufacture of adhesive. Making the lignin resorcinol formaldehide adhesive is done by differences sodium lignosulfonate : resorcinol : formaldehyde mole ratio are ratio 1:1:1, ratio 1:1:2 and ratio 1:1:3. The results obtained from testing the appearance of the adhesive has a blackish brown color. pH of each ratio is ratio 1:1:1 11,2, ratio 1:1:2 11,4 and ratio 1:1:3 12,0. Adhesive densities are ration 1:1:1 1,2857, ratio 1:1:2 1,2119, and ratio 1:1:3 1,3097. Viscosities are ratio 1:1:1 108,83 cps, ratio 1:1:2 94,31 cps and ratio 1:1:3 129,92 cps. The rest of the evaporation are ratio 1:1:1 50,77%, ratio 1:1:2 42,35% and ratio 1:1:3 41,01%. Test results compared with standard phenol formaldehyde which is SNI 06-4567-1998 liquid phenol formaldehyde and result ratio 1:1:3 the best of another ratio .

Penelitian ini bertujuan untuk mengembangkan dan menghasilkan media pembelajaran menggunakan VBA for Powerpoint yang valid, praktis dan efektif pada materi segi empat di kelas VII MTs Lab IKIP UMN Al-Wasliyah tahun ajaran 2019/2020 yang berjumlah 25 siswa. Penelitian ini menggunakan metode Research and Development (R&D) dengan model ADDIE, yaitu Analysis, Design, Development, Implementation dan Evaluation. Instrumen pengumpulan data berupa lembar validasi, angket respon siswa dan guru serta tes hasil belajar. Hasil penelitian menunjukkan bahwa kevalidan media pembelajaran sebesar 4,54 dengan kategori sangat baik/valid. Kepraktisan media pembelajaran dari respon siswa sebesar 90.6% dengan kategori sangat kuat dan respon guru sebesar 92% dengan kategori sangat kuat. Keefektifan setelah menggunakan media pembelajaran meningkat sebesar 60% dan setelah dilakukan uji-t diperoleh bahwa t-hitung= 15,664 dan t-tabel= 2,064 sehingga adanya perbedaan yang signifikan antara nilai pretest dan posttest karena t-hitung > t-tabel begitu juga dengan N-gain diperoleh sebesar 0,505 dengan kategori sedang yang berarti bahwa media VBA for Powerpoint dapat meningkatkan hasil belajar siswa. Kata Kunci: Media Pembelajaran, VBA for Powerpoint , Segi Empat Abstract: This study aims to develop and produce learning media using VBA for Powerpoint that are valid, practical and effective on rectangular material. In class VII MTs Lab IKIP UMN Al-Wasliyah in the 2019/2020 school year, totaling 25 students. This research uses the Research and Development (R&D) method with the ADDIE model, namely Analysis, Design, Development, Implementation and Evaluation. Data collection instruments include validation sheets, student and teacher response questionnaires and learning achievement tests. The results showed that the validity of learning media was 4.54 with a very good / valid category. The practicality of instructional media from student responses amounted to 90.6% with very strong categories and teacher responses by 92% with very strong categories. The effectiveness after using the learning media increased by 60% and after the t-test was obtained that t-count = 15,664 and t-table = 2.064 so that there was a significant difference between the pretest and posttest values because t-count > t-table as well as N -gain obtained by 0.505 with the medium category which means that the VBA for Powerpoint media can improve student learning outcomes Keywords: Learning Media, VBA for Powerpoint, Rectangular

Bioplastic is environmentally friendly plastic designed to facilitate the degradation of enzymatic reactions of microorganisms such as bacteria and fungi. This research was aimed to obtain the effect of cocoa pod husk addition on mechanical properties of bioplastics included tensile strength, elongation at break, functional group using FT-IR, surface morphology using SEM and biodegradation. Cocoa pod husk is a filler in production of bioplastic research. The production of bioplastic method that used in this research was casting method. Variation of jacfruit seed starch and cocoa pod husk composition ratio were 5:5, 6:4, 7:3, 8:2, and 9:1 (w/w) and variation of ethylene glycol were 0,2; 0,25; 0,3; 0,35; and 0,4 (v/w). The best condition of bioplastic was composition ratio of jackfruit seed starch and cocoa pod husk 7:3 on addition of ethylene glycol was 0,2 (v/w) with tensile strength 15,40 MPa, elongation at break 1,24%. From the result of FT-IR analysis indicated O-H group, C-H group, C=O group and C-O group on bioplastics. The result of mechanical properties were supported by Scanning Electron Microscopy (SEM) showed the bioplastic with cocoa pod husk as filler and ethylene glycol as plasticizer have the fracture surfaces were compact. From the result of biodegradation test, bioplastics was completely degradated within 14 days in the soil.

Creative thinking is required by the students as future supplies.However, the reality is very few teachers found creativemathematics, thus making the students find it difficult to applymathematics in everyday life. One model of learning thatencourage students to creative thinking is Project Based Learning(PjBL). Project based learning is a learning model through a set ofspecific projects. Project based learning model is a model oflearning that starts from the provision of challenging questionsabout a phenomenon, then assign students to do an activity,focusing on the collection and use of evidence, not just deliveringinformation directly and the emphasis on rote learning processesused in order to more meaningful. Based on the research results of28 students in the class V-A MIS Nurul Falaq Tanjung Morawa onthe application FPB and KPK by analyzing indicators of creativethinking abilities are problem sensitivity, fluency, flexibility,originality, and elaboration. The average of prolem sensitivityindicator is 4,0 with very exelent category. The average of fluencyindicator is 3,8 with exelent category. The average of flexibilityindicator is 4,0 with very exelent category. The average oforiginality indicator is 2,0 with dissapointed category. The averageof elaboration indicator is 4,0 with category very excellent. It canbe concluded that: the model of project-based learning can be usedas a learning model to analiyzed mathematical creative thinkingabilities of students.

Penelitian ini bertujuan untuk mengetahui pengaruh model Problem Based Learning terhadap hasil belajar siswa pada materi pokok suhu dan kalor. Jenis penelitian ini adalah quasi eksperimen dengan two group pre-testt-posttest design. Populasi dalam penelitian ini adalah seluruh siswa kelas X semester II yang terdiri dari 5 kelas. Pengambilan sampel dilakukan dengan cara cluster random sampling yaitu kelas X-MIA 1 sebagai kelas eksperimen dan kelas X-MIA 5 sebagai kelas kontrol. Instrumen yang digunakan yaitu tes hasil belajar yang berbentuk essay test dengan jumlah 10 soal. Nilai rata-rata hasil belajar siswa yang diberi perlakuan dengan model Problem Based Learning adalah 76,53 dan dengan pembelajaran konvensional adalah 69,7. Berdasarkan hasil analisis perhitungan uji t, menunjukkan bahwa ada pengaruh model Problem Based Learning terhadap hasil belajar siswa pada materi pokok suhu dan kalor.