Izzati, Nabilah2013-01-142013-01-142013-01-14Sahlanhttp://repository.unri.ac.id:80/handle/123456789/1359PEMBERIAN LKS BERUPA TEKA-TEKI SILANG UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN STRUKTUR ATOM DAN SISTEM PERIODIK UNSURPEMBERIAN LKS BERUPA TEKA-TEKI SILANG UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA PADA POKOK BAHASAN STRUKTUR ATOM DAN SISTEM PERIODIK UNSUR KELAS X SMA NEGERI 10 PEKANBARU Nabilah Izzati*), Armiyus Thaib, Herdini Program Studi Pendidikan Kimia Fakultas Keguruan dan Ilmu Pendidikan, Universitas Riau *)E-mail: nabil_za8@yahoo.co.id ABSTRACT Student worksheets are one of the important learning tools and are expected to help students to discover and develop the concept. From observations during the field experience implementing programs in SMA Negeri 10 Pekanbaru in September 2011 until January 2012, it appears that the way of presenting student worksheets seem monotonous and less varied in particular on the subject of Atomic Structure and the Periodic System of Elements the first grade. This causes students are less motivated and less actively involved in the learning activities, resulting in students’ achievement on the subject of Atomic Structure and the Periodic System of Elements is still relatively low. Based on this, done research on giving student worksheets form of crossword puzzles to improve students’ achievement on the subject of Atomic Structure and the Periodic System of elements the first grade. This research is an experimental research with pretest-posttest design. The time of data collection was conducted in July until September 2012. The population in this research is the first year students of SMA Negeri 10 Pekanbaru of the academic year 2012/2013 consisting of nine classes. The research sample consisted of two homogeneous classes, the class X.8 as the experimental class and the class X.4 as the control class. The experiment class was treated giving student worksheets form of crossword puzzles, whereas the control class was given usual learning. The data collection technique is the technique of test. Technique of data analysis used is the t-test. The results of the analysis of hypothesis data showed that t-value is greater than t-table is 2.48 > 1.675, so it can be concluded that giving student worksheets form of crossword puzzles can improve students’ achievement on the subject of Atomic Structure and the Periodic System of Elements the first grade of SMA Negeri 10 Pekanbaru.otherStudent WorksheetsActive Learning Strategy of Crossword PuzzlesAcademic AchievementAtomic Structure and the Periodic System of Elementsstudent Paper Post Degree