# Math 55, sections 105 and 106, Spring 2016

**Graduate Student Instructor:** Shelly Manber

**Email:** shellym [at] math [dot] berkeley [dot] edu

**Sections meet:** MW 12-1 and 1-2

**Office hours:** Mon and Tues 2:10-3 in 1043 Evans Hall

## Announcements:

Office hours changing from 2-3 Thursday to 2-3 Monday. This week (Feb 8-12) I will still hold office hours 2-3 Thursday; the change will take effect next week.
Office hours as normal during RRR week

Review Session: Wednesday, May 4, 12:10-2 in Evans 891

Please email me if you would like office hours during finals week with days and times you prefer.

### Worksheets and Resources:

**Jan. 20:** Here is a link to the puzzle we worked on today, from the MIT mystery hunt, written by Mike Sylvia. Once you finish restricting the letters of the solution, if you don't automatically see the answer, I recommend using nutrimatic to get the solution. To use nutrimatic, type "." to refer to any letter, "[abc]" to refer to "either a, b, or c", and "[^abc]" to refer to "any letter except a,b, or c."

**Jan. 27:** This is the first quiz and the problem of the week and here are the solutions.

This is the worksheet on valid and invalid proofs.

**Feb 3:** This is the second quiz. Here are the solutions.

**Feb 10:** This is the third quiz. Here are the solutions.

**Feb 24:** This is the fourth quiz. Here are the solutions.

**Mar 3:** This is the fifth quiz. Here are the solutions.

**Mar 9:** This is the sixth quiz. Here are the solutions.

**Mar 16:** This is the seventh quiz. Here are the solutions.

**Mar 30:** This is the eighth quiz. Here are the solutions.

**Apr 13:** This is the ninth quiz. Here are the solutions.

**Apr 20:** This is the tenth quiz. Here are the solutions.

**Apr 27:** This is the eleventh quiz. Here are the solutions.

**May 4:** This is a list of review problems from today's review session.