====== Week 11 ======
~~NOTOC~~

===== Python =====

  * [[https://dcic-world.org/2021-08-21/part_state.html#%28part._modifying-variables%29|Ch 24: Modifying Variables]]

**//Reminders://**

  * This Fri, Nov 12: Midterm 2
  * Review session Thursday, Nov 11


==== Tuesday ====

**//Destructive Programming//** \\

  * Colab notes: [[https://colab.research.google.com/drive/1ZI5SakXjWCEZCzItFlvF-H8jr1DMZdJk?usp=sharing | week-11.ipynb]]
  

  * Configure Colab:
    * Turn on the "show indentation guides" option in Colab and set the indentation width to 4 spaces.
    * These options will make it easier to see the levels of indentation, which affect how Python interprets your code.
    * (Click the gear icon in the upper right to open the settings pane)
    * {{:courses:cs101-2021-0405:colab-screen-shot.png?nolink|}}

==== Thursday ====
//** Survey **//
Please take about 10 minutes to fill out this mid-semester survey. Your answers will be anonymous: [[https://docs.google.com/forms/d/e/1FAIpQLSdCdVEqT7JpdO9h0x8gCbZuZ6hnJL0ZZErq33zULFcIfsq_Fw/viewform]]

//**Midterm 2 Review**//

  * Practice Problems posted on Campuswire: [[https://campuswire.com/c/G916D3D51/feed/31]]
  * Try to do them before Thursday's class
  * We'll go over the solutions on Thursday


**Review and Promises for Midterm 2**  

  * Logistics:  \\ \\
    * 75 points / 75 minutes
      * budget your time one point per minute
      * designed the length with a 75-minute lecture in mind
      * actually have 120 minutes for our lab, so time should not be an issue \\ \\ 
    * Reference notes (from the [[https://www.cs.vassar.edu/courses/cs101-2021-0405/top#exams|Exams]] section of the syllabus):
      * you may refer to an 8.5×11-inch piece of paper, double-sided, with anything written (or typed) on it that you want. 
      * preparing this sheet of notes is an excellent way to study, encouraging you to consider what’s important that you will want to refer to. \\ \\ 
    * You are on your honor:
      * due to five sections of the course taking their exam at different times on Friday
      * we will ask you to attest that you have not discussed, and will not discuss, the contents of the exam with anyone until everyone has taken the exam. 
      * we will let you know as soon as all students have taken the exam \\ \\  

  * Topics:  \\ \\
    * While the exam is necessarily cumulative, the emphasis will be on topics we've covered since the first Midterm. You are generally responsible for the material in 
      * chapters 9, 10, 11, 13, and 14 of the DCIC text
        * Ch. 9: Lists
        * Ch. 10: Processing Lists
        * Ch. 11: Structured Data
        * Ch. 13: Recursive Data
        * Ch. 14: Trees
      * corresponding lectures from weeks 6, 7, and 9
      * labs 5, 6, and 7
      * assignments 4, 5, and 6 \\ \\

  * Promises:  \\ \\ 
    * 5 questions, points for each question will be indicated
    * all Pyret, no Python
    * practice problems shared as a PDF in Campuswire. Please try to do these before Thursday's class. We'll go over some of them on Thursday  \\ \\ 
    * **Problem 1.** Step-by-step development of a non-recursive function that takes a list of numbers, and uses an anonymous function and a built-in list function in its body (like Problem 5 on the practice problems)  \\ \\ 
    * **Problem 2.**  Expressions involving built-in list functions. (like Problem 6 on the practice problems) \\ \\  
    * **Problem 3.** Given a recursive data definition (like Problem 2--//The Cat in the Hat//--on the practice problems), make examples, write a template, and a function.  \\ \\
    * **Problem 4.** List of structured data. (like Problem 4 from the practice problems)  \\ \\ 
    * **Problem 5.** Given a data definition for a Tree, and the diagram of a tree (like Problem 7 on the practice problems):
      * translate the tree diagram into its Pyret representation
      * design a function that takes a Tree, including all the parts a function should contain. \\ \\ 
==== Friday ====

  * Midterm 2 
  * Come to your regular lab in SP 309