<![CDATA[Purpose – The goal of this project is to develop a multimedia learning product called “Mainpec” (Multimedia Interaktif Pecahan) based on the Autoplay in order to enhance the critical thinking abilities and mathematical learning of fourth-grade elementary school students. Furthermore, the implementation of "Mainpec" is expected to enhance pretest and posttest results. Design/methods/approach – The Borg and Gall model was used to create the research and development product during the eight (8) stages of the process. Purposive sampling was used to choose nine students from class IV-B for the small group trial and thirty-one students from class IV-A for the large group trial at SDN Tugu Utara 14 Pagi Jakarta in Indonesia. Observation, interviews, a five-point Likert scale expert validation questionnaire, and pretest and posttest tools created using the Facione critical thinking framework were among the methods utilized to gather data (Facione, 2015). The validity, reliability, and normality of the instruments were tested prior to implementation in the educational environment. The reliability of the instruments was tested using Cronbach’s alpha, with the results showing a coefficient of 0.702 for the critical thinking skills instrument and 0.925 for the learning outcomes instrument. This value indicates that the instrument has acceptable internal consistency and is considered reliable. The data analysis techniques used included the normality test (Shapiro-Wilk), paired sample t-test, and the N-gain measure. Findings – The media, the content, and the language all scored 92.5%, 92.5%, and 93.75%, respectively, with an average of 93% of “Highly Feasible,” according to the expert validation results. With p-values of less than 0.001 and a gain score of 0.60 for both variables, this indicates an improvement from pretest to posttest results after using the media. Research implications/limitations – These findings show that utilizing Autoplay-based interactive multimedia with PBL syntax can enhance primary school students’ critical thinking and mathematical learning outcomes. Nevertheless, this study’s shortcomings include the use of a single school, the lack of a control group, the short duration of each group’s two class meetings, and the use of a single mathematics topic. Originality/value – The integration of PBL syntax with Autoplay-based multimedia is the primary contribution of this study. Particularly when it comes to calculating decimal fractions and percentage, this branch of fundamental mathematics has not gotten much attention. This product was developed for offline implementation in classroom learning. This allows schools with limited internet access to still integrate it into their learning activities.]]>
