The Effect of Whatsapp-Based Blended Problem-Based Learning on Students' Scientific Argument Ability in the Concept of Viruses

This study aims to determine the effect of Whats App-based blended problem-based learning on students' scientific argumentation skills on the concept of a virus in class X MIPA Madrasah Aliyah Negeri Tasikmalaya Indonesia. The research method used is a quasi-experimental method using a posttest only control design. The population in this study was class X MIPA as many as 202 people. Samples were taken by non-probability sampling in the form of purposive sampling. The sample used is MIPA 5 and X MIPA 6 classes at Madrasah Aliyah Negeri Tasikmalaya Indonesia as many as 61 students. With MIPA 6 class as many as 30 students as the experimental class and X MIPA 5 as many as 31 students as the control class. Data collection was done by giving 7 questions of scientific argumentation. The data analysis technique used was t independent with a significance value (0.0001). The results showed that there was an effect of WhatsApp-based blended problem-based learning on the ability to argue scientifically. Other findings show that the average scientific argumentation ability of students is based on its components, namely claim (2,224), evidence (1,825) and reasoning (0,378).