Flashcards are an effective teaching resource because of their emphasis on pictures to convey information.
A study completed in 2002 by Silverman found that of the 750 students surveyed, 33% were strongly visual learners and another 30% were moderately so. The majority of students had a preference for using visual imagery over other options, such as verbal or written instruction.
Another interesting study tested students’ ability to remember groups of three words. Students who tried to remember the words by repeating them over and over again did poorly on recall. In comparison, students who made the effort to make visual associations had significantly better recall.