As we explore the world of fractions, decimals, and percents, the sixth graders have stumbled into the annual debate about whether 0.9999...repeating is equal to one. I enjoy hearing their reasons for both sides and how passionate they get about their point of view. To wrap up the debate, I share this definitive video about why 0.999.... is equal to one. It is the work of one of my favorite YouTube stars, ViHart. If you have not had the pleasure of experiencing ViHart, enjoy. I recommend just letting the experience wash over you first, then go back for a closer look on the second time round. Or third....
Does she convince you?