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 The Odd Squad show aims at problem solving and thinking and includes building procedural fluency as well as building conceptual understanding. The show uses creativity and imagination to foster inquiry and math-talk.