Development of CPS-Based Learning Media Using Google Sites to Improve Students' Mathematical Literacy Skills

Low mathematical literacy among students is a major challenge in junior high school mathematics education. Weak literacy causes students to have difficulty understanding and applying mathematical concepts in a contextual manner. This study aims to develop a Creative Problem Solving (CPS)-based learning medium using the Google Sites web platform, as well as to test the feasibility and effectiveness of this medium. The study was conducted at Junior High School 16 Jambi City with 29 eighth-grade students as subjects. The method used was the ADDIE development model (Analysis, Design, Development, Implementation, Evaluation). Research instruments included expert validation questionnaires, teacher and student response questionnaires, and mathematical literacy tests. Data analysis was conducted using quantitative descriptive techniques. The results showed that the developed learning media were highly valid (content validation at 83.33% and design at 92.63%), highly practical (practicality rated by teachers at 96.52% and students at 90.74%), and highly effective (effectiveness at 86.20%). The improvement in students' mathematical literacy skills is reflected in an N-Gain score of 0.63, which falls into the moderate category. Thus, the CPS-based learning media using Google Sites developed through the ADDIE model is deemed valid, practical, and effective in enhancing students' mathematical literacy. The implications of this study suggest that integrating the Creative Problem Solving approach with web-based technology can serve as an innovative alternative in the development of interactive learning media. Additionally, these results contribute to strengthening students' mathematical literacy through contextual, challenging, and problem-solving-based learning.