As is always the case, different kinds of questions assess different levels of student understanding. Problems are posed both in a narrowly targeted multiple-choice format similar to that often used in paper and pencil testing, or in a more open format with fewer cues to the correct response. The instructions for solving the problem are given in the blue text in the middle of the page.
Students can then try other answers.
In addition, more comments pointing out other salient information appear. Here, three more formants on the spectrogram are identified, reinforcing material presented earlier in the tutorial. In this format, there is no list of answers for students to select from. The program provides graduated feedback to student responses. If a student clicks a part of the spectrogram that is far from the intended one, the program displays a feedback window that suggests another try.