IB Computer Science 1

Thursday (10/22/15)

Agenda:

• Lab 12: Collect Them All
• Lab 13: Harvest the Field

Tuesday (10/20/15)

Agenda:

• Lab 11: Maze Solver
• While Loop concepts
  • counter variables
  • update operators (+=, -=, *=, /=, %=)
• While Loop practice
  1. Write a loop that prints 0 to 10
  2. Write a loop that prints 10 to 0
  3. Write a loop that prints from 19 to 77
  4. Write a loop that prints the first 50 even numbers
  5. Prompt a user for a number N. Write a loop that then prints out the first N even numbers (Hint: Use multiple variables)
• Lab 12: Collect Them All

Wednesday - Friday (10/14/15 - 10/16/15)

Agenda:

• APS PRIME Internship Program - see Ms. Burgos for more information
• VA Governor's School - Summer Residential Programs - see Ms. Burgos for more information
• Volunteer & job opportunities for juniors or seniors (if interested, come see Mr. Bui):
  • Ms. Carlson (PTA member)
    • Requirement: HTML skills, general I.T. skills
    • Paid work on various projects for non-profit clients: voter registration, e-mail broadcasting, fundraising website maintenance, Facebook page maintenance
  • Mr. Goldstein (school board candidate)
    • Requirement: general I.T. skills
    • Volunteer work on various I.T. projects: e-mail broadcasting, data entry
• Introducing the Debugger
  1. Load your Lab3.py code
  2. Set a debug breakpoint at the line where the world is created (clicking on the left gray gutter will leave a red dot)
  3. Hit the debug button (ladybug)
  4. What happens? The code should execute, but stop at the debug breakpoint
  5. You may now use the debug stepping buttons:
     1. Step-into (arrow into box) - executes current line and steps into any function calls
     2. Step-over (arrow over box) - executes current line and goes to next one (does *not* enter function calls)
     3. Step-out of (arrow out of box) - steps out of the current function call
• Lab 10: Lab 2 Redo
• Lab 11: Maze Solver

Friday (10/9/15)

Warmup:

• Think about the following questions (you may discuss with a partner):
  1. What is the purpose of a password for a login (authentication) system?
  2. Why do password systems require a minimum password length (e.g. 8 characters or more)?
  3. Why do password systems require the use of both upper and lowercase characters as well as special characters (e.g. !@#$%^&*)?
  4. Do all password systems have identical password requirements?
  5. What happens when people have too many different passwords?

Agenda:

• Cybersecurity - password authentication attacks
• Revisit warmup_10_5_15.py
  1. Copy and paste the code from warmup_10_5_15.py into a new file named while_login.py
  2. We will walk through different ways to improve our password system
  3. First, let's allow the user to retry logins using a while loop
  4. Second, let's prevent known password attacks using a while loop
• while loops
  • Media:PythonWhileLoops.pptx
• Lab 8: Introducing the While Loop
• Lab 9: Simplifying Repetitive Statements

Wednesday (10/7/15)

Agenda:

• Complete Lab 7: Functions & Conditionals
• Introduction to Iteration
• while loops
  • Media:PythonWhileLoops.pptx
• Lab 8: Introducing the While Loop
• Lab 9: Simplifying Repetitive Statements

Monday (10/5/15)

Warmup:

1. Create a new file named warmup_10_5_15.py
2. Prompt the user for a username and store it in a variable named username
3. Prompt the user for a password and store it in a variable named password
4. Write an if-else-statement that checks if the username matches "wlcs" and the password matches "awesome"
5. Print out "Login successful" if the username and password are correct, and "Login rejected" otherwise

Agenda:

• Complete Lab 7: Functions & Conditionals

Thursday (10/1/15)

Warmup:

• Go to Google Classroom and check if you have turned in every lab assignment

Agenda:

• Back to School Night Debrief
• Period 1 - Complete Labs 5 & 6
• Introduction to Conditionals
  • Comparison operators (<, >, <=, >=, ==, !=)
  • Boolean values: True, False
  • Comparison operators assignment
  • Logic operators: and, or, not
  • Media:BooleanLogic.ppt
  • Logical operators assignment
  • if statement
    • Media:PythonIfStatements.pptx
  • if-else statement
  • nested if statements
• Letter Grade Calculator
  1. Prompt the user for a number (0-100) (if you don't remember, look at past notes and lectures)
  2. Use if-statements, comparison operators, and logical operators (and, or, not)
  3. Print out the appropriate letter grade for the number (A, B+, B, C+, C, D+, D, E)
• Menu System
  1. Find a fast food menu that lists different items and their caloric counts
  2. Print out a menu of 5 of those items
  3. Prompt the user to make a choice of one of the menu items
  4. Using if statements, determine what choice the user made, and print out the calories in the order

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• IBCS1 - 1516 - September