Brendan W. Sullivan: Fall 2011
21-127 Concepts of Mathematics


As a courtesy to my students, and to help myself prepare for recitations (and to teach this course in the future!), I have been preparing handouts for each recitation. You can download these individually below (listed chronologically) or click here for a .zip of all of them. Thanks to Adam Blank for the suggestion to make these in the first place, and to Will Boney for help in writing several of these.

Please let me know if you find any mistakes/typos, no matter how small. I would like to use some variant of these in the future, so it would be quite helpful to have error-free documents!
Note: missing days reflect either a day after an exam (and thus a review of exam solutions) or a continuation of the same material from the previous recitation's sheet.

These are intended for current students in 21-127 only, so please do not distribute to other teachers or your friends, or save the solutions or anything like that. Seriously guys, don't be a dick.