Aprofessor wants to examine the effectiveness of a new teaching approach. her 9: 00 a. m. class will be exposed to the new method of viewing teaching tapes, while her 10: 00 a. m. class will be exposed to traditional lectures. students will be able to choose which tapes they want to view. what method is the professor using to conduct her experiment

scientific

Explanation:

The professor is using scientific approach to conduct her study or to experiment.

The professor wishes to research on the positive effects of her new teaching approach.

She will take two different approach and will take her 9:00 a.m. class to teach about her new teaching methods  while his 10:00 a.m. class will deliver her normal conventional lecture classes. Thus the students will get the opportunity of choosing which tapes they wishes to view from the two options.

Thus this is a scientific method of conducting her experiment.

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