By Rosemarie Emanuele. In Geometry, if one took a Cartesian graph with lines donating values of x and y, and wrapped it around a cylinder so that the left side matched up with the right side, the result would be a graph that might still have a highest and lowest value, but would now have no left or right value. Thus, in a sense, there would be no beginning or end, since beginnings and endings no longer exist separate from each other. I found myself thinking of this as we approach our graduation ceremony tonight. Read more...
Weekly Exams Do Students No Favors
To the Editor:
I do not disagree with the findings of Henry L. Roediger regarding the importance of written notes or synopses to help students master information, and the necessity for students to read the material in their classes and work through it via weekly exercises that require them to use it (“How Exams Improve Students’ Access to Their Brains,” The Chronicle, May 6). More...

