When a miffed O’Brian won’t let Olive access the tubes, she has to solve the mystery of what she did to upset him, since he won’t tell her. It must’ve been something she did in the morning, but what? With the help of Oscar, Olive retraces her steps, eliminating every period of time she can account for until she discovers what it was that upset O’Brian. Curriculum: Measurement; telling time and determining elapsed time

Originally released by Sinking Ship Entertainment, Inc., 2014. Streaming video file encoded with permission for digital streaming by Infobase on March 31, 2021.