# Discussion: Keynote Part 2

 posted by: Jim Vanides on May 19, 2003 at 8:49PM subject: "What does it mean..."
 The first mathematical issue I see is the question of what the "bottomnumber" really means. Towards the end of the video, the teacher asks if this means "4 in a group" or "4 equal groups". I see another subtle math issue regarding what is meant by thehorizontal line that separates the 3 from the 4. The girl up frontsaid, "3 groups of 4". In thinking of where she could have come up with this, it occured to me that she is interpreting the LINE as the word"of", which could have been drawn from previous discussion (not shown)that the fraction reads "3 of 4". She could have misunderstood thatthis as "3 groups of 4" instead of "3 out of 4 groups". So the mathmeaning of the LINE becomes very important.Of course, I don't teach math, so I'm VERY interested in what otherpeople see in the video!- Jim Vanides (jimvanides @ att.net)
 © TERC 2003, all rights reserved Home • Keynote • Poster Hall • Panels • Discussants Reflect • Resources • Lounge • Info Center