Tag Archive for: Rate Reaction

Developments in the 21st century is so rapid that innovation in various fields is required one of which is education. Through the implementation of the 2013 curriculum, the metacognitive abilities needed in the 21st century were train. The Problem Based Learning (PBL) model can support students to develop their metacognitive abilities. The rate of reaction as one of the subjects that are difficult to understand can be taught through the PBL learning model. The aim of this study is to develop a Student E-Worksheet based on Problem Based Learning to train students metacognitive abilities on reaction rate material. The Student E-Worksheet development model in this study uses a 4D model. The development of Student E-Worksheet was declared feasible to train student metacognitive abilities. The results of content validity of 94.81% and construct validity of 96.97%. Then the results of practical of observing student activities and questionnaire with a value of 96.37%. The effectiveness of the Student E-Worksheet is seen from the pretest and posttest values ​​which were analyzed using the SPSS Paired Sample t-Test test, a significance value of 0.000 was obtained.