Are you looking for an engaging, thought-provoking activity that will encourage participation from even your most reluctant students? Well, look no further! A well-crafted “Which One Doesn’t Belong?” question can be used to kick off a mathematical discussion on any topic or concept, at any grade level, and can even help students hone their critical thinking and justification skills. Although there are many variations of this strategy out there, you’ll hear from Marian in this video why she believes one particular approach might be the most beneficial for you and your students. So, if you ask us, we’d say that “Which One Doesn’t Belong?” activities definitely belong in the math class.