Pengembangan Instrumen Tes Diagnostik Model Testlet Sebagai Pendeteksi Kesulitan Belajar Peserta Didik Pada Pokok Bahasan Larutan Penyangga

The development of instrument diagnostic test as a testlet model for learning difficulties detection on chemistry is a kind of reserach development which is used ADDIE model. The ADDIE model has consisted some stages such as: Analysis, Design, Development, Implementation and Evaluation. Because some limitations, The research stage just until is done until Implementation stage, that use some doing trial in limited subjects used, is trialed at SMAN 12 and the istruments is done validated by some lectures of Pendidikan Kimia-FKIP, UR. The study aims to: (1) develop of instrument diagnostic test as a testlet model for learning difficulties detection on chemistry is a kind on buffer, (2) Know the learning difficulties detection using on chemistry is a kind diagnostic test model testlet instrument, (3) Know the reliability of the problem, the level of difficulty of the problem, and the differentiation of the problem. The results of the research shows that: (1) The diagnostic test instrument of developed testlet model is stated valid from material aspect, construction aspect, and language aspect, (2) students of class XI IPA 2 SMAN 12 Pekanbaru have difficulty studying on indicators 4, 5 and 6 Students of class XI IPA 3 SMAN 12 Pekanbaru have difficulty studying on indicator 2, 4, and 6. (3) reliability matter 0,55; The difficulty level of the item consists of 15 items of easy category, 12 items on medium category, and 13 items on the difficult category; The problem of differentiator of item item consists of 2 items of good category, 2 items about good category, 9 items about enough category, and 27 items about bad category

Penerapan Metode Pembelajaran Aktif Cooperative Script untuk Meningkatkan Prestasi Belajar Siswa pada Pokok Bahasan Struktur Atom di Kelas X Mia SMA Negeri 1 Kepenuhan Kabupaten Rokan Hulu

Research on the application of active learning Cooperative Script method has been done in class X of SMAN Kepenuhan Kabupaten Rokan Hulu on the subject of atomic structure. Based on the results of observations conducted by researchers at the SMAN1Kepenuhan Kabupaten Rokan Hulu do known that learning is teacher centered, so that students become less active and negatively affect student achievement. The objective was to determine the increase in student achievement and increase student achievement category. The research form is an experimental research with pretest-posttest design. The sample consisted of two classes, namely class X MIA1 as the experimental group and the class X MIA2 as the control group. The experimental group is the group of students who were treated by applying the active learning of Cooperative Script method, while the control group was treated with information discussion methods. Data analysis technique used is the t-test. The results showed tarithmetic>ttable (2,07 > 1,68) and N-gain of the experimental group is 0,754 which includes the high category. Therefore, it can be concluded that the application for active learning Cooperative Script method can increase student achievement in the subject of anatomic structure in SMAN 1 Kepenuhan Kabupaten Rokan Hulu

Penggunaan Media Kartu Domino Hidrokarbon untuk Meningkatkan Aktivitas dan Ketuntasan Belajar Siswa di Kelas X.10 SMA Negeri 5 Pekanbaru

The research problem that the writer found is that chemistry learning at class X.10 of SMAN 5 Pekanbaru is not condusive yet. In learning process, students are only as listeners and write notes if teacher write something on board. During learning process, students seldom ask a question. This research is aimed to know the improvement of students learning activity and mastery learning by using Hydrocarbon domino card at X.10 class of SMAN 5 Pekanbaru in academic year 2015/2016. This research is a class action research with two cycles in research design. The sample of this research was X.10 class which was given an action for improvement in learning process by using Hydrocarbon domino card media. The data collection was conducted by observing and giving tests. The data analysis technique was conducted descriptively by using percentage technique. Based on the result of the data analysis, it can be concluded that the use of Hydrocarbon domino card media can improve students learning activity and completeness at X.10 class of SMAN 5 Pekanbaru. It can be seen by the improvement of students learning activity from 69,72% at the first cycle to 85,97% at the second cycle and students learning completeness from 87,50% at the first cyle to 100% at the second cycle

Pengembangan Lembar Kegiatan Peserta Didik (Lkpd) Berbasis Konstruktivisme pada Pokok Bahasan Laju Reaksi

The objective of this research is to develop the student's work sheet on the subject of reaction rate.The research is done in FKIP Riau University. The method of this research is design reserach with the 4-D model which include Define, Design, Develop, and Disseminate. But this research is done until develop. The data research is validation's result of student work sheet based on constructivism on reaction rate. The data analysis technique is descriptive statistic analysis and analysis done by percentage of validation score. The average scores of valuation by validator's team from four expendiency components such as content, language, layout, and graphical are 92,86%, 93,33%, 95,83%, and 93,75%. In spite of average score totally of student worksheet based on contructisvism on reaction rate is 93,94% which is valid criteria. It means means student work sheet that is developed ready to use. Whereas percentage response of students is 95,75% to very good criteria

Penerapan Media Pembelajaran Hidrokarbon Berbasis Aurora 3d Presentation untuk Meningkatkan Prestasi Belajar Peserta Didik di Kelas XI Mipa Sman 1 Kampar

The research aims to increase student learning achievement on the topic of hydrocarbon inclass XI MIPA Senior High School (SMAN) 1 Kampar. Aurora 3D Presentation was used when the teacher explained the topic being able to explain abstract concepts into concrete, one of them on the topic of hydrocarbon. The research was a kind of experiment research with pretest-posttest design. The samples of this research were the students of class X­I MIPA 3 as the experimental class and students of class XI MIPA 4 as the control class. Experimental class is a class that is applied to media Aurora 3D Presentation while the control class was not. Data analysis technique which is used is t-test. Based on data analysis of data obtained tcount> ttable is 2,30 >1,67, it means that the application of Aurora 3D Presentation as media presentation can improve student learning achievement on the topic of hydrocarbon in class XI MIPA Senior High School (SMAN) 1 Kampar, increase learning of 7,03%

Penerapan Model Pembelajaran Kooperatif Think Pair Share (Tps) Untuk Meningkatkan Prestasi Siswa Pada Pokok Bahasan Larutan Penyangga Dikelas XI IPA SMA Negeri 1 Sungai Apit

This research aims to increase student achievementon the Buffer topic at class XI SMAN 1Sungai Apit. The research is experiment research with pretest-posttest design. The samples of research were the students of class XI 2 as the experimental class and students of class XI 3 as the control class. Experimental class is a class that is used the cooperative learning model think pair share (TPS) while the control class was not. Data analysis technique used is t-test. Based on analysis of data obtained that tarithmetic> ttable is 2,70 > 2,00, means that the use of cooperative learning model think pair share (TPS) can improve student achievement on of buffer solution topic the learning increase resect about of 10,56%