Development of Hologram Media Based on Problem Based Learning Ability Think Critical Symbiosis Material Class III At SDN Sidomulyo 01

Abstract

This research is motivated by the lack of varied learning media. The aim of the research is to improve critical thinking skills
through the development of Hologram Media with the Problem Based Learning model. The research method uses Research and Development
(R&D), the development model uses ADDIE which consists of five stages: analysis, design, development, implementation and evaluation. The
research subjects were media, language and material expert validators, teachers, and 15 class III students. Data collection techniques include
observation, questionnaires and documentation. Data analysis uses qualitative and quantitative methods. Hologram media was validated by
89.7% of media experts, 89.4% of material experts and 97.5% of language experts in the "very appropriate" category. The teacher's practicality
test obtained 90%, while student responses showed 91% in the small group and 94% in the large group "very practical". The effectiveness test of
the results of the t-test analysis proved a significant difference between before and after treatment, showing an increase from 56.33% to 89.67%.
Furthermore, the N-Gain test for 15 students received an average score of 80% in the "Effective" category. So it can be said that Hologram
Media Based on Problem Based Learning is effective in improving critical thinking skills.