Online demos can be as effective as classroom teaching
YouTube has become the go-to for quick tutorials on almost any topic, from how to replace a zipper to how to install a water heater. But could some of the most memorable parts of a STEM course — live demonstrations — be brought to the screen effectively? In a new paper, Harvard researchers show for the first time that research-based online STEM demonstrations not only can teach students more, but can be just as enjoyable. Researchers hope these findings will help spur the creation of a catalogue of free online STEM video demonstrations to supplement lectures at institutions that cannot conduct their own. “We have an incredible group of scientists who present live demos for our students, but very few schools have these dedicated resources,” said co-author Logan McCarty, director of science education in the Department of Physics, who oversees Harvard’s Lecture Demonstration team. “With YouTube and other online channels, we...