However, the researchers did not clearly state what grammar material was taught in the experimental and control classes. As we know the topic of grammar discussion is very numerous and the level of difficulty varies. So, it seems like it would be better if the researchers also mentioned it. Then, in the conclusions section, the researchers seemed a little doubtful about the use of this Prezi, even though the results of the study showed significant differences in values between the two classes. As far as I know, researchers conduct research and communicate the results of their research to the audiences to convince the audiences that the results of the research are valid and the research that has been done is true. But here the researcher shows his doubts. Despite of that matter, overall this article is very good.
D. ConclusionÂ
As stated above, the use of Prezi has a positive influence in the delivery of teaching material. This is very useful for educators and educators-to be  of courses. Besides that students can also use this web tool outside the classroom to help them better understand the material. Educators and students can also create their own presentations using this web tool as creatively as possible.
