Upaya Meningkatkan Prestasi Belajar Operasi Hitung Bilangan Pecahan dengan Pendekatan Matematika Realistik pada Siswa Kelas V

Tujuan – Penelitian ini bertujuan untuk meningkatkan hasil belajar matematika dalam pembelajaran operasi hitung bilangan pecahan pada siswa kelas V A MIN 1 Gunungkidul Yogyakarta dengan menggunakan pendekatan realistik.&#x0D; Metode – Jenis penelitian ini adalah Penelitian Tindakan Kelas. Subyek penelitian adalah siswa kelas V A MIN 1 Gunungkidul Yogyakarta yang berjumlah 15 siswa dan guru kelas V A. Obyek penelitian adalah hasil belajar operasi hitung bilangan pecahan menggunakan pembelajaran matematika realistik. Untuk menguji validitas instrumen dalam penelitian ini menggunakan validitas konstrak dengan menggunakan pendapat ahli (experts jugdement). Data hasil penelitian diperoleh dari observasi dan tes hasil belajar. Data yang diperoleh dianalisis secara deskriptif kuantitatif dan deskriptif kualitatif.&#x0D; Hasil – Hasil penelitian menunjukkan bahwa rata-rata hasil belajar menggunakan pendekatan matematika realistik adalah 67,00 pada siklus I, dan meningkat lagi menjadi 78,33 pada siklus II. Pada siklus I siswa yang tuntas belajar hanya  54,29% meningkat menjadi 75,68% pada siklus II.&#x0D;  &#x0D;  </jats:p

Penentuan Lama Kalsinasi Kalsium Karbonat CaCo₃ dari Batu Kapur Tanjung Karang Kabupaten Donggala

Telah dilakukan penelitian tentang penentuan lama kalsinasi kalsium karbonat CaCO₃  dari batu kapur Tanjung Karang Kabupaten Donggala. Kandungan sampel hasil karakterisasi menggunakan alat XRF dan XRD. Hasil karakterisasi menggunakan alat XRF, kandungan unsur CaO (kalsium oksida) setelah kalsinasi selama 4 jam terlihat bahwa batu kapur memiliki presentase CaO terbesar pada penelitian ini yaitu 98,83% yang berarti terjadi keseimbangan ideal antara lama kalsinasi 4 jam dan suhu kalsinasi 950ºC. Sedangakan lama kalsinasi 5 jam  persentase kandungan CaO menurun yaitu 98.11% dan untuk 6 jam persentase sebesar 97.87%. Hal ini karena kandungan senyawa CaO mulai mengalami perubahan menjadi senyawa lain sehingga persentase kandungan CaO berkurang. Pencocokan hasil analisis XRD dengan software Search Match memperlihatkan bahwa sampel CaO memiliki sistem kristal trigonal (heksagonal axes) dengan nilai konsatanta kisi pada 4 jam a=b=4.8120 Å dan c=5.3270 Å,untuk 5 jam sebesar a=b=4.94100 Å dan c=16.8540Å, dan untuk 6 jam sebesar a=b=4.9870 Å dan c=17.0580 Å. Sedangkan untuk perhitungan teori mendapatkan hasil konstanta kisi untuk sampel yang dikalsinasi pada 4 jam sebesar a=b=1.6649 Å dan c=5.9679 Å, untuk 5 jam a=b=2.0613 Å dan c=1.7971 Å dan untuk 6 jam a=b=0.6102 Å dan c=2.1138 Å.&#x0D;  &#x0D; Kata kunci: Batu kapur, kalsinasi, kalsium oksida, XRF,XRD.</jats:p

SENI TILAWAH AL-QUR’AN DALAM PEMBENTUKAN KARAKTER

Read the Qur’an in tartil, but it is an inseparable part of human existence as a cultured creature who has creativity, taste, and intention. Art is a part of culture. Culture is the result of cultivation creation for humans themselves, and society grows because of culture. Muhsin Salim further explained that art as the embodiment of a sense of beauty in general is for the welfare of life. Art that arises through recitation of the Koran which is the result of the process of learning the songs of the Koran. Understanding character is innate, heart, soul, personality, character, behavior, personality, nature, character, temperament, character. The character is personality, behavior, character, character, and character. Character refers to a series of attitudes, behavior, motivation, and skills. Learning is an effort to teach students. Meanwhile, according to Suyudi, learning is a process to acquire knowledge, while knowledge is a way to obtain truth or value, while truth is a statement without hesitation that begins with an attitude of doubt first. The art of reading the Qur'an or known as An-Naghom fil Qur'an means to beautify the sound of the recitation of the Qur'an. Learn ways or methods in humming, singing, beautifying the sound of the recitation of the Qur'an. The art of reading the Qur'an is an oral science. Based on the description above, it can be concluded as follows: In general, the implementation of character education at the Nurul Quran Praya Islamic Boarding School, Central Lombok has been carried out in an integrated manner in the learning process, both held in formal education such as Islamic Junior High Schools and Madrasah Aliyah institutions as well as extracurricular programs developed in hostels, such as the Al-Quran Recitation art education program, implementation of integrated character education at the vision-mission level, and the goals of the Nurul Qur’an Praya Islamic Boarding School, Central Lombok. Character formation through the art of recitation of the Qor’an includes characters related to perseverance, patience, responsibility, mutual cooperation, and religion. These characters grow from the processes of habituation that take place continuously through education in the art of recitation of the Koran. The most prominent characters include the character of perseverance, patience, responsibility, mutual cooperation, and religion. Indicators of the formation of the character of students through the art of recitation of the Koran can be seen from values such as the patience of students, the character of responsibility, obedience and obedience, a climate of mutual cooperation, and the religious situation that characterizes the lives of students. The religious atmosphere is clearly reflected in the culture of greetings, clothing and clothing, obedience and obedience of students, manners, worship, reciting and morals that are reflected in the lives of students in the Al-Quran Recitation art program at the Nurul Qur’an Praya Islamic Boarding School, Central Lombok.&#x0D;  &#x0D; Keywords: Character Formation, Santri, Art of Recitation.</jats:p

Identification of aquifer layer using method of geo-electric resistivity in Tampabatu Village, Ampana Tete Sub-districts

Abstract The study was conducted using geo-electric method to identify the groundwater aquifer layer and depth which is below the surface based on the resistivity value. The purpose of this research is to know the aquifer which is identified by 3 point of measurement expanse. The research method used is geo-electric resistivity method and measurement technique used is Vertical Electrical Sounding (VES) with Schlumberger configuration. Data processing using Progress Version 3.0 software is performed to obtain the distribution of the earth surface subsurface type resistance. Based on the results obtained aquifer coating on the resistivity value ranged from 30 Ωm-58 Ωm with the value of formation factor 2-3 which is a free aquifer layer and aquifer medium. The aquifer layer is detected at a depth of ± 12.08 m up to ± 100 m below ground level (bgl).</jats:p