Study aids such as posters and flip books once were used mainly by teachers. Now, with changes in education, other uses have emerged.
Unfortunately, many classes went online. What was the result, and what will continue to be the result? The immediate result was many students did not fully develop to their potential. And if online education continues to have a role, albeit less than during the pandemic, there is a danger of even more damage being done.
Online education has advantages. Students can pace themselves. If it takes twice as long to master something online classes can accommodate this need. The disadvantage is that online education is not for everyone. It is for the highly motivated students, but it becomes an encumbrance for those students who view going online as a chance to shorten their lessons and not fully address their studies.