Sunardi, Hartanto
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METODE PEMBELAJARAN KOOPERATIF MODEL JIGSAW UNTUK MENINGKATKAN PRESTASI BELAJAR KOMPETENSI TEKNIK PEMESINAN BUBUT Hartono, Budi; Sunardi, Hartanto; Karyono, Hari
Jurnal Pedagogi dan Pembelajaran Vol 2, No 1 (2019)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jp2.v2i1.17606

Abstract

Proses pembelajaran kompetensi teknik pemesinan bubut terdapat permasalahan yakni rendahnya pemahaman siswa terhadap pembelajaran yang disampaikan guru. Hal tersebut disebabkan karena metode pembelajaran yang digunakan kurang bervariasi, kurang menarik, dan kurang mengajarkan kegiatan pembelajaran praktik yang baik dan benar. Untuk meningkatkan prestasi belajar siswa maka peneliti berkotmimen untuk memperbaiki metode mengajar dalam proses pembalajaran siswa. Salah satu metode pembelajaran yang dapat mengaktifkan siswa adalah pembelajaran kooperatif model jigsaw. Penelitian ini adalah penelitian eksperimen. Terdapat satu kelas eksperimen dan satu kelas kontrol. Instrumen pengumpul data dalam penelitian ini adalah (1) lembar observasi kemampuan guru mengelola pembelajaran, (2) lembar observasi aktivitas siswa,  (3) angket respon siswa dan (4) tes hasil belajar. Analisis data dalam penelitian ini adalah analisis data deskriptif dan analisis data statistik inferensial. Hasil dari penelitian ini adalah (1) Metode pembelajaran kooperatif model jigsaw efektif untuk mengajarkan kompetensi teknik pemesinan bubut di kelas XI SMK Negeri 1 Pungging. Hal ini karena syarat-syarat keefektifan pembelajaran kooperatif model jigsaw telah terpenuhi, yaitu : a) Ketuntasan belajar secara klasikal tercapai, yaitu sebesar 87%, b) Kemampuan guru mengelola pembelajaran efektif, c) Aktivitas siswa selama mengikuti pembelajaran efektif, dan d) Respon siswa terhadap pembelajaran positif. (2) Prestasi belajar siswa dengan metode pembelajaran kooperatif model jigsaw lebih baik dibandingkan dengan prestasi belajar siswa dengan model pembelajaran konvensional untuk kompetensi teknik pemesinan bubut di kelas XI SMK Negeri 1 Pungging. Hal ini ditunjukkan dari hasil analisis data statistik inferensial.           
ORTONORMALISASI VEKTOR BASIS DENGAN PROSES GRAM SCHMIDT Wardani, Irma Budi; Sunardi, Hartanto
Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 5 No 2 (2015)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/buanamatematika.v5i2:.391

Abstract

Gram schmidt process is one of linear algebra roles that associated by basis vector. This thesis aims to determine theoretically step by step in the process of gram schmidt. Gram schmidt process is a method that used to convert an arbitrary basis vector into an orthogonal basis vector. After orthogonal basis vector had been obtained, the orthogonal basis vector was compiled into an orthonormal basis through step by step. A vector on will be expressed as a basis vector if the vector if the vectors in are linear independently and spinning against . And a basis vector can be expressed as a set of orthonormal vectors, then the vector is an orthogonalvector and has norm = 1. If the basis vector has norm 1, to normalize the basis vector by using gram schmidt process. Keywords: vector base, ortonormalisasi, gram schmidt proses.
ANALISIS DERET FIBONACCI DAN GOLDEN RATIO PADA SIMBOL HATI BERDASARKAN PROPORSI LOGO DESAIN PRODUK APPLE Wulandari, Puputi; Sunardi, Hartanto
Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 5 No 2 (2015)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/buanamatematika.v5i2:.392

Abstract

Commonly Fibonacci sequence is understood as sequence which is gotten from relation orderly start from 0 and 1, then next number is gotten from the addition of two number before it. If number in Fibonacci sequence are divided with previous number will be gotten number which the value will be same after the comparison approaching 1,618… these number are known as Golden Ratio or symbolized as (phi).This study aims to analyze mathematically Heart symbol and arrange the element in terms of the Fibonacci sequence and Golden Ratio based on logo proportion product design Apple . Then the ratio of the beauty of the Heart figure before and after arrangements were analyzed using the Wilcoxon test with 18 respondents of the students audience Junior High School 2 Taman Sidoarjo. In addition, based on the value of statistical tests, proven heart fibo curve more beautiful than heart curve. Keywords : Fibonacci, Golden Ratio, Heart Curve, Apple Design, Wilcoxon
PEMBUKTIAN DUA PULUH LIMA DALIL PYTHAGORAS Sunaryo, Sunaryo; Sunardi, Hartanto
Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 5 No 2 (2015)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/buanamatematika.v5i2:.396

Abstract

Mathematics is a discipline that can help Pythagoras solve some various problems (Government,Industry, science) Pythagoras is the first person who contributed the proof of this theorem, however, many people believe that there is a special connection between the sides of a ringt triangle just a long before Phytagoras found it. However Phytagoras gave very significant important role in various major related to mathematics. For example to form trigonometri and algebra, this theorem is a connection between Euclidean geometry among the three sides of the triangle which shaped from the length of the two sides will equalto square number which formed by the hypotenuse. In athematics, Phytagoras theorem is written using the general form , where a and b represent the length of two other condition of a right triagle and c has a length of the hypotenuse. This observation aim to describe there verification of twenty five arguments of Phytagoras appropriately and correctly. And by knowing the expected arguments of Phytagoras makes learning math is not just memorize a formula but to understand more deeply and can be implemented in their daily lives. This research method using the method of literature from the literature study theore hcal framework underlying stuctored problem soling method that includes the use of the arguments of Phytagras, Phytagoras formula, triple Phytagoras, comparison of the sides of aright triangle for special angels and lines o the trigle. Keywords : Phytagoras, hipotenusa.