THE PROJECT BASED LEARNING MODEL ASSISTED WITH AUDIO VISUAL MEDIA TO IMPROVE THE UNDERSTANDING OF SCIENCE IN CLASS IV STUDENTS IN PRIMARY SCHOOL

This research is motivated by the class teachers at SDN 2 Kerjo, SDN 2 Salamrejo, and SDN 2 Sumberingin who are already skilled, but the obstacles experienced by the teachers are the difficulty in innovating in choosing sources and learning models so that students' scientific literacy has not been developed optimally. The type of research used is quantitative research with the Quasy Experiment method, this design has a control group but cannot function fully to control variables. External variables that affect the implementation of the experiment with the experimental design used is the Nonequivalent Control Group Design where the data in the study are in the form of numbers and analysis using statistics with the background of the obstacles experienced by the teachers, namely the difficulty in innovating in choosing sources and learning models so that students' scientific understanding has not been developed optimally. The purpose of this study is to determine the Effect of the Project Based Learning Model Assisted by Audio Visual Media to Improve the Science Ability of Grade IV Students in Elementary Schools. The sample used is the Non-Probability sampling technique. The samples used are SDN 2 Sumberingin, SDN 2 Salamrejo, and SDN 2 Kerjo. The number of samples from SDN 2 Kerjo is 12 students, SDN 2 Salamrejo 16 students, and SDN 2 Sumberingin 16 students. Based on the results of the hypothesis obtained from the pretest and posttest that sig. (2-tailed) <0.05, namely 0.000 (<0.05). The sig. (2-tailed) value is smaller than 0.05, so Ho is rejected. There is a difference in the average understanding of science before and after using the learning model. So it is concluded that the Project based learning model assisted by audio-visual media affects increasing the understanding of science in grade IV elementary school students.