CSC151.02 2015S, Class 51: Files in Scheme
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_Overview_

* Preliminaries.
    * Admin.
    * Upcoming Work.
    * Extra Credit.
    * Exam 4.
    * Questions.
* Quiz.
* Enjoy the afternoon.

Preliminaries
-------------

### Admin

* Next week has no new material.  
    * On Monday and Tuesday, we will go over your projects.  
    * On Wednesday, we will review what we've learned (or might have
      learned).  
    * On Friday, you will evaluate the course, we will talk about the
      final, and I'll talk about the course.
* Don't forget to grab a yellow card.
* Friday PSA.
    * Enjoy the weather

### Upcoming Work

* Exam 4 prologue due tonight!
* Exam 4 due in electronic form on Monday night.  
* Exam 4 epilogue due Monday night.
* Extensions are available.
* No more readings!

### Extra Credit Opportunities

#### Academic 

#### Peer Support (Afternoon Section)

* Baseball, Saturday, Noon and 2:30, Sunday 10:00 and 12:30.
* Triathalon on Saturday
     * Participate!
     * Cheer!  is acceptable too
* Quinceañera tonight at 7pm in Main.  (Yay coordination!)

#### Miscellaneous

### Other Good Things (no extra credit)

* Symphonic band Saturday at 2pm
* Latin American Music Ensemble Friday in Sebring-Lewis at 7:30pm

### Notes on Exam 4

We'll do an example of binary search on the animals tree.  (We'll use
the animals, rather than the letters.)

We'll do an example of the advanced flattening algorithm on a
generated tree.  Yes, you may take a photo after class.  You should
probably take notes, too.

### Questions