IB Computer Science 1

Tuesday (11/23/10)

Agenda:

• Looping Exercises
• Looping with GASP Exercises
• Turkey Exercise
  • You will be using GASP to draw turkeys all over the screen
  • Define a turkey(x,y) function that draws a turkey at a particular location (HINT: It helps to be able to draw a turkey in the lower left, and then generalize it to draw at (x,y))
  • Using a loop, draw 50 random turkeys all over your screen
• Read and work through Case Study: Catch

Friday (11/19/10)

Warmup:

• Take out scratch paper and work out the Fibonacci sequence
• Assign variables to the first two numbers
• ...how do you calculate the third number?
• What should happen next?

Agenda:

• Looping Exercises
• Looping with GASP Exercises

Wednesday (11/17/10)

Warmup:

• Assume you have the following code:

<syntaxhighlight lang="Python" line> i = 0 while i < 10:

   print "All work and no play makes Jack a dull boy."
   i = i + 1

</syntaxhighlight>

• What is the counter variable?
• What is the condition of the loop? (i.e. when does it end?)

Agenda:

• Print Shapes Exercises
• Looping Exercises

Monday (11/15/10)

Warmup:

• Assume you have the following code:

<syntaxhighlight lang="Python" line> a = 0 b = 1 c = 0 a = a + 1 c = c + 1 b = a * c c = c + 1 </syntaxhighlight>

• What are the final values of a, b, and c?

Agenda:

• Introduction to Iteration (looping)
  • while loops
  • counter variables
• Looping practice
  • Print out all the numbers from 0-50
  • Print out all the numbers from 75 down to 25
  • Write a loop that prints out the first 100 even numbers
  • Prompt the user for a number and store it in a variable n, then print out the first n odd numbers (starting at 1) using a loop
  • Print out all the numbers that are divisible by 6 from 0 through 100
• Guessing Game Assignment

Wednesday (11/10/10)

Warmup:

• Complete the HTTLACS: Ch 5 exercises and demo to Mr. Bui

Agenda:

• Introduction to GASP
• Creating useful functions

Monday (11/8/10)

Warmup:

1. Prompt the user to enter a decimal (float) number and store in variable x
2. print int(x)
3. print round(x)
4. Test out your program using several numbers (e.g. 3.2, 4.5, 5.9)
5. What do you think the int() and round() functions do?

Agenda:

• Review return
• Review doctests
• Complete the exercises at the end of HTTLACS: Ch 5 (w/ doctests)

Thursday (11/4/10)

Warmup:

• Define a function named slope(x1, y1, x2, y2) that takes the four listed parameters
• Calculate the slope and store it in a variable m
• print m

Agenda:

• Return and go over 1st Quarter Exam
• Re-introduction to Functions
  • return keyword
  • doctests
• HTTLACS: Ch 5
• Complete the exercises at the end of Chapter 5 (w/ doctests)

Monday (11/1/10)

Warmup:

• Prompt the user to enter his/her grade (0-100)
• Using if statements, do the following:
  • if the grade is greater than or equal to 90, then print "You have an A"
  • if the grade is less than 90 and the grade is greater than or equal to 80, then print "You have a B"
  • if the grade is less than 80 and the grade is greater than or equal to 70, then print "You have a C"
  • if the grade is less than 70 and the grade is greater than or equal to 60, then print "You have a D"
  • if the grade is less than 60, then print "You have an E"

Agenda:

• Demo Geek Flow Chart Assignment today
• Go to HTTLACS: Ch 4 and read section 4.11: GASP
• Try out the GASP code to see if it works
• Try to draw a stick figure

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