Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Metakognisi Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Pada Materi Pola Bilangan Siswa Kelas VIII Di SMPN 9 Tualang

The problem in this research is the learning resources used less effective because it only uses the revised 2013 curriculum package book 2017. The ineffectiveness of the learning resources used can affect students' ability to solve problems. Solving ability mathematical problems can be improved by using learning resources in the form of LKPD based on metacognition. This study uses development research methods. Design development research consists of 3 stages, namely the define stage, carried out to define the form of metacognitionbased LKPD that will made. The design stage (design), aims to prepare LKPD metacognition based. Stage of develop (development), researchers develop LKPD based on valid, practical and effective metacognition. Instruments that used is the LKPD validation sheet, participant response questionnaire validation sheet students (practical), student response questionnaire (practical), validation sheet student response questionnaire (effectiveness), student response questionnaire (effectiveness), RPP validation sheet, RPP, Test instrument validation sheet and test instrument. The data analysis technique used is validity analysis, analysis of practicality and effectiveness analysis. The results showed that the metacognition-based LKPD designed to be valid with a validity result of 76.48%. Then the LKPD has been practical used with a practicality result of 81% with a very practical category. Besides The metacognition-based LKPD has been effective with 82.13% effectiveness results with a very positive category. Problem solving ability of students increased with an N-Gain of 0.62 criteria enough.