Three of the following teachers are using scaffolding to help their students learn. Which one is not necessarily providing scaffolding?
Ms. Applegate gives her students a structure to follow as they write their first essay.
Mr. Bernardo teaches a backhand tennis swing by gently guiding each student through the correct movement a few times.
Ms. Chen gives her class some hints about how to solve an especially difficult word problem.
Mr. Donaldson takes his students on a field trip to the local art museum.