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Wednesday, 5 September 2018
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live_helpGuiding questions
What kinds of problems are computers good and not-so-good at solving?
How do computers store and manipulate data?
check_circleLearning Objectives
Provide and defend an example of a problem that computers are optimal for solving.
Explain how computers convert data to decimal numbers to binary and back again when communicating internally and with other computers
Identify the essential strengths of computers as systems
listLesson sequence
List professional fields and their struggles on the board
Visit a few of the problems one at a time: Are computers a useful tool for solving this problem? Rate 1-3 with hand votes.
Watch clip from War Games: Catherine and David are having fun playing what they think is a war simulation game for just a single terminal. They learn on the news that their game resulted in a panic by actual nuclear weapons controllers. David gets a call with computer data from the system at NORAD prompting for the game to continue.
What does a phone have to do with text on a screen? Work an example of converting a phrase like "TO WIN THE GAME" to ASCII equivalent decimal digits and then to binary. An ASCII code table translates English letters to decimal numbers (base-10). Then a decimal to binary converter hops us over to ones and zeros.
Each student translates his/her/their name from letters to binary and writes the converted value on their name card.
sendProducts
A name card with English letters and their binary equivalent hanging on computer screens.
Create a system diagram of a sub-system on a vehicle. Discussion: system diagrams are of components and their relationship. We are trying to diagram a computer system, and understand its related components.
Station best practices: Tinker and explore. Stop and search. Document learning. Keep your brain on topic: Reading is the key mechanism for learning.
Station rotations at 10mins/station ish
Final note card
Stations
Rotate through each station, working through the explorations steps for each and using the 1/2 sheet station documentation to record your learning.
straightenNote card diagnostic
Identify this computer component
Diagram three components that this component is related to and label the flow
Would a computer cease to function if this component were removed? Why or why not?
Web technology stack: information (HTML), styling(CSS), interactivity(Javascript) essetinals
Open this simple javascript page and tinker with it. Then disable javascript in the developer console in Chrome: Open dev tools with F12 >> click the three dot memu icon in the upper right >> settings >> disable javascript
Refresh the page and explore how it behaves with JS off.
Locate a page of your choosing and document what happens when we turn off Javascript
Cookies and the internet search data gathering mechanisms: Comparing google search, bing, and duckduckgo
Compare the following websites: in terms of cookies, sources, and javascript use