Adding Even More Vectors

Powerpoint is a weird animal.  Sometimes it's useful, sometimes it's a tease.  Today, it was fairly helpful for me.  I love in my class doing chorus responses.  They love to tell me when I'm being ridiculous, and I love when they do that.  It adds to the interaction between us.  So we did the whiteboard vector adding activity, and I must say I was impressed.  I love how they talk to each other and get help from one another, often in their home language or across cultural lines.  For the most part, they seemed to understand what was going on with adding vectors.  I think almost all of them got about 70% of the problems right on the worksheet.  The things I kept repeating were "nose and tail."  "Every vector has a nose."  "Where's the nose?"  I think I tapped my nose so many times, it may have turned reddish.