Abstract
The closure of schools due to the Covid-19 pandemic has forced all schools in Indonesia to be closed temporarily, therefore learning must be carried out online. Online learning is commonly carried out with teacher presentations and assignments therefore this makes learning monotonous and boring for students. So we need a medium that makes learning more interesting, namely with interactive powerpoints. The purpose of this study was to determine the effect of using interactive powerpoints in the online-based TGT model on thermochemistry material. This type of research is quasi-experimental research with a post-test only control group design. The data collection technique used the technique of daily test tests, documentation, and student perception questionnaires. The data were analyzed using the normality test, F test, and t test with a significance level of 5%. The results showed that before being given the treatment, the two classes were normally distributed, homogeneous variations and there was no difference in student absorption. After being given the treatment, the two classes had significant differences in absorption. Therefore it can be concluded that there is an effect of using interactive powerpoints in the online-based TGT model on thermochemistry material.
Highlights
Thermochemistry as a part of chemistry has been studied since high school through chemistry subjects.according to research conducted by Zakiyah, et al [1]chemistry is a difficult subject for most high school students
The purpose of this study was to determine the effect of using interactive powerpoints in the online-based Teams Game Tournament (TGT) model on thermochemistry material
It can be concluded that there is an effect of using interactive powerpoints in the online-based TGT model on thermochemistry material
Summary
Thermochemistry as a part of chemistry has been studied since high school through chemistry subjects.according to research conducted by Zakiyah, et al [1]chemistry is a difficult subject for most high school students. The results of the study stated that the cause of chemistry is considered difficult because chemistry requires abstract thinking skills, requires mastery of mathematics, and has tiered concepts. These three factors are contained in the thermochemical material in which students will learn about heat, and calculate enthalpy changes with the help of stoichiometric concepts. Chemistry lessons are associated with failure because according to Putri's research [6], thermochemical material is categorized as difficult material for students to understand This is because the thermochemical material contains more computational material, while the majority of students avoid subject matter that contains calculations. This shows that a variety of learning models are needed to help students understand the material
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