An instructor has just finished the lesson covering a complex concept that is essential to understanding the next topic of the course. Most of the learners are looking at the instructor with glazed expressions. When the instructor asks questions designed to determine whether the class understands the concept, most learners avert their eyes. This description MOST probably indicates that the trainer has failed to do which of the following?
A.
Act on the learners’ feedback while the lesson was being presented.
B.
Talk about the concept in sufficient detail.
C.
Plan the instruction so that the concepts are taught in a logical sequence.
D.
Present the material in a knowledgeable and authoritative manner.