Math 170 - Ideas in Mathematics
My Recitations
201 and 205: Wed 9-10AM in DRLB 3C8
202 and 206: Wed 10-11AM in DRLB 3C8
203: Fri 9-10AM in DRLB 3C8
204: Fri 10-11AM in DRLB 3C8
Office: 4N31
E-mail: elenabn@math.upenn.edu
Office Hours : Tue, 10-11am
General information for Math 170 can be found on
Dr. Leidy's Math 170 webpage
Recitations and Homeworks 
Your participation in recitation is very important. Each week we'll talk about topics related to the
material covered in class the week before. They will be posted on this website.
You have to print the topics for the week and write a half
page presentation on one of them. It may consist of a summary of the main concepts, a related example,
some related information that was presented in class, anything that shows you have been thinking of the
topic before coming to recitation.
During recitation we'll see presentations on those topics. You are encouraged to ask questions, share
related information you've found while preparing for recitation. You will also have to rate other students'
presentations and turn your evaluations in along with your half page presentation of your chosen topic. This
will count towards your attendence to recitations.
Please make use of my office hours and go to Dr. Leidy's.
Presentation Topics - Set 1 To be presented either Wed, Jan 18th or Fri, Jan 20th
Presentation Topics - Set 2 To be presented either Wed, Jan 25th or Fri, Jan 27th
Presentation Topics - Set 3 To be presented either Wed, Feb 1st or Fri, Feb 3rd
Presentation Topics - Set 4 To be presented either Wed, Feb 8th or Fri, Feb 10th
Presentation Topics - Set 5 To be presented either Wed, Feb 15th or Fri, Feb 17th
Presentation Topics - Set 6 To be presented either Wed, Feb 22nd or Fri, Feb 24th
Presentation Topics - Set 7 To be presented either Wed, Mar 1st or Fri, Mar 3rd
Presentation Topics - Set 8 To be presented either Wed, Mar 15th or Fri, Mar 17th
Presentation Topics - Set 9 To be presented either Wed, Mar 22nd or Fri, Mar 24th
Presentation Topics - Set 10 To pe presented either Wed, Mar 29th or Fri, Mar 31st
Presentation Topics -Set 11 To be presented either Wed, Apr 5th or Fri, Apr 7th
Knot diagrams for Set 11
Presentation Topics -Set 12 To be presented either Wed, Apr 12th or Friday, Apr 14th
Presentation Topics -Set 13 LAST!! To be presented either Wed, Apr 19th or Friday, Apr 21st
Presentations
Every students has to make a presentation at some point in the semester. You will be given materials and references
to prepare your presentation. You can chose your own presentation format. You can use the blackboard, you can do a slide
presentation, etc.
You should keep in mind that your presentation is evaluated on the following criteria:
- Are the key ideas of the chosen topic reflected by the presentation?
- Are the mathematical concepts well understood?
- Is the presentation well organized and easy to follow?
- Is the presentation well documented and provides supporting examples?
- Is the student able to answer topic related questions?
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