CSC151.02 2016S, Class 28: Recursion with Helper Procedures
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* New partners.

_Overview_

* Preliminaries.
    * Admin.
    * Upcoming Work.
    * Extra Credit.
    * Questions.
* Quiz.
* Lab.

Preliminaries
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### Admin

* This lab is expected to continue into Monday's class.
* Friday PSA.
    * Take care of yourselves
    * Take care of each other
    * Remember: Increased police presence brings benefits and risks
    * Remember: Track and Field brings benefits and risks

### Reminders

* Office hours next week 
    * See http://rebelsky.youcanbook.me.
* Tutor hours
    * Sunday, 3-5 p.m.
    * Sunday-Thursday, 7-10 p.m.
* Weekly review sessions:
    * Wednesday at 8pm in the CS Commons with someone.
    * Thursday 10 am review session with Sam.
    * Thursday at 8pm in the CS Commons with someone.

### Upcoming Work:

* Reading for Monday: Reading for today
* Exam 2 due TUESDAY.
* Lab Writeup: Exercise _____
    * Send email titled __CSC 151 Lab Writeup 28 (Your Names)__
    * Do not include the underscores.
    * Send to <CSC151-02-grader@grinnell.edu>
    * Due before class on Tuesday.

### Extra Credit

* Send your reports to <rebelsky@grinnell.edu> with subject 
  "CSC 151 Extra Credit".  (Do not include the quotation marks.)
* Send opportunities to me before class with subject
  "CSC 151 EXTRA CREDIT OPPORTUNITY!"

#### Academic / Artistic

* Friday at 4:00 pm. in Burling: Decolonizing Digital Humanities

#### Peer

* The Tempest.  This weekend.  7:30 Friday and Saturday, 2:00 Sunday.
  Tickets in Bucksbaum box office.
* Salseros Friday at 8:30 pm in Garnder.  Food!  The JS non-brothers,
  sighing deeply.
* 8:00-10:00 show with various cool jazz-funk-pop at PC.  No free food.
* Sunday, 6:00-8:00 AAA Potluck in JRC 209.  Free ingredients!
* Peace and Conflict Studies Symposium.  Cool speaker tonight.
  Cool peer presentation Saturday.

#### Regular Peer

* Social Dance Workshop Tuesdays 7:00-8:00 in Bucksbaum Dance Studio
* Pun club Saturdays at 4pm in Younker 
* Electronic Potpourri on KDIC Fridays at Five 
* Space Odyssey KDIC Fridays at Six
* Bollywood, Friday, 7:30-8:30, Younker
* Effective Altruism club, 2:30-3:30 Sundays in JRC 226.
* Sunday, 1-2pm, Salseros.  You will sweat.

#### Misc

* Host a prospie.  

#### Far in the Future

* Lords of the Flies, April.

### No Extra Credit, But Still Good

* Indoor track nationals.

### Questions

_What random number should we use?_

> The same one you used for exam 1.

Quiz
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* Have fun!
* Do well!

Lab
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    > (my-quotient 10 2) 
    5
    > (my-quotient 42 2 3)
    7 ; (42 / 2) / 3

RJ says "No writeup!"