Week 2

• Attendance
  
  
• Office hours poll
  • Tue/Thu afternoons?
    • a) 1-3pm
    • b) 2-4pm
    • c) 3-5pm
    • d) 4-6pm
      
      
• Questions from lab?
  • we will finish up Lab 1 before we begin Lab 2

Arithmetic is Computing

• lecture1.pdf
  
  

Computation versus Programming

• lecture2.pdf
• Code – note: to view this file you need to save it on your computer and open it in DrRacket

• Attendance
  • welcome to students who added since our last class!
  • any more volunteers from section 56 to attend the lab for section 57?
    
    
• Coaches
  • Four confirmed so far:
    • section 56: JoJo and Samira
    • section 57: Cameron, Joseph
    • hopefully a couple more will be confirmed soon!
  • will begin holding office hours (see the sidebar for the schedule)
    • make up Lab 1 for recent adds
    • commit/push Lab 1 for those who still need to
  • practice active reading
    • ask coaches questions about the readings, or anything in the course
  • don't forget my office hours
    
    

• Office hours Zoom (different from lectures/labs)
  
  
• DrRacket is the IDE we're using (Racket is the command line tool—different)
  
  

• Lecture 1 (resume with slide 16)

The Design Recipe

• Computation versus Programming: lecture2.pdf
• lec2.rkt – code corresponding to lecture2.pdf

Conditional expressions / Helper functions

• lecture3.pdf (up to slide 36)
• lec3.rkt – code corresponding to lecture 3.pdf

Lab today – after some lecture

• Don't begin until after we finish the lecture
• Lab 2 Making the Grade