Friday, January 29, 2021

Week of February 1st - 5th, 2021

 

Welcome to Principles of Computer Technology for Spring 2021! 


“We live in a time exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.  This is a clear prescription for disaster.”  
- Carl Sagan

Monday:
Welcome! Discuss rules and expectations, course outline, current events assignment, "Good Questions" homework for Wednesday.
Here is the main presentation from today (ctemc.org login required)

Tuesday:
'Introduce yourself with FlipGrid' assignment due by 5:00 PM today, so that I can review them before tomorrow's class.
Begin unit 1: Digital Representation of Real World Information.  Here is the presentation we'll be using for the next few classes (ctemc.org login required)
Essential Questions:
  • How can a computer work with so many kinds of information if all it can do is process ones and zeroes?
  • How can a computer turn physical phenomena like sound and pictures into ones and zeroes?
  • How can a computer turn ones and zeroes into physical phenomena like pictures and sounds?
Ones and zeroes: introduce binary/hex numbers

Wednesday:
(Shorter classes today: P1 is 8:00 to 9:00 and P2 is 9:05 to 10:05)
'Ask some good questions' assignment due by 7:30 AM today.
First we will complete whatever is left from Tuesday's class up through the slides on binary search.  
Introduce 'Wine Bottle Riddle'.
You may have some class time to work on Khan Academy.  The Khan Academy units on 'Bits and Bytes' and 'Binary Numbers' as well as 'Digital Information: Quiz #1' is due by tomorrow morning.
Here is an online quiz that will give you practice converting between decimal, hex, and binary numbers.  It also includes octal (base 8) but you can skip them. . . 

Thursday:
Today is a flip day -- P2 is 7:45 to 9:00, and P1 is from 9:05 to 10:20.
Khan Academy 'Bits and Bytes', 'Binary Numbers', and 'Digital Information: Quiz #1'  due by 7:30 AM today
For all the Khan Academy quizzes, you can continue to retake them until you are satisfied with your score, up until the due date and time of the assignment.
Begin talking about digital encoding - sounds, pictures, videos.  We'll continue to use the slides from Tuesday.

Friday:
Continue talking about digital encoding.
Khan Academy 'Limitations of storing numbers', 'Storing text in binary', 'Converting analog data to binary' and 'Digital Information: Quiz 2' due by 7:30 Monday.