In addition to slides helping instructors stay organized and on topic, some research suggests that access to lecture slides before a lesson can improve learning
I am a big fan of utilizing slideshow presentations, so I am glad to hear that there is actually research that backs up how these can improve learning. It's interesting to look at the components that make up a good slide presentation. Using contrasting colors, layouts, standard fonts, and including graphics and images all seem like they would help to enhance the learning of the students.