LESSON 10: INTRODUCTION TO LINKS

1. Study the index cards on Introduction to Links. I've included a hard copy of these index cards, for your convenience. Be sure you can answer all the questions!
   • What is a LINK?
   • How do you know, when you look at a web document, where the links are?
   • What does "HREF" stand for?
   • What's the most basic information required in a link?
   • Where does the stuff that you want to be the "clickable area" go in a link?
2. Do worksheet item (W10.1) on Introduction to Links, where you'll continue with the online tutorial.
3. CODING PART OF QUIZ:
   Write a link to my homepage, http://fishcaro.crosswinds.net . The clickable area should say Going to Dr. Fisher's homepage!
   Write a link to Amazon, http://www.amazon.com . The clickable area should say Get yourself a good book!
4. Please read pages 40–42 (from "Shifting and Dithering" up to "System Colors in Web Pages") in the Weasel book and answer the following questions:
   1. When a browser running on an 8-bit monitor encounters a color from the full color space, it can try to approximate it in two different ways. What are these two ways?
   2. Describe "color shifting". Can color shifting result in large discrepancies in how a color is displayed on a 24-bit display versus an 8-bit display?
   3. Describe "dithering". Where is dithering most noticeable?
   4. What usually happens for colors specified in an HTML document (like background or table colors)—shifting or dithering?
   5. What usually happens in images—shifting or dithering?
   6. What is one situation (mentioned in the box on page 40) where color approximation can become particularly troublesome?
   7. Fill in the blanks: the web palette recognizes ______ shades of red, ______ shades of green, and ______ shades of blue, resulting in ____________ possible color values.
   8. What are the three systems used for defining RGB values?
   9. What are the possible decimal (base ten) values for RGB color? Give an example of a typical decimal RGB value.
   10. In the decimal RGB system, web-safe colors are multiples of _____ .
   11. Is 51-153-255 a web-safe color? Answer yes or no, and give a reason why.
   12. Is 27-51-102 a web-safe color? Answer yes or no, and give a reason why.
   13. Fill in the blank: hexadecimal is a base ______ system. (The hexadecimal system will be studied later on.)
   14. Fill in the blanks: Web-safe colors are in increments of ____ percent. The percentage value equivalent of the RGB color 51-51-255 is __% __% __%
   15. The percentage value equivalent of the RGB color 102-153-204 is __% __% __% .
   
   
   To answer the following questions, study the web palette at www.learningwebdesign.com/webpalette.html.
   
   
   16. What is the RGB color 0-0-0 (the total absence of color)?
   17. What is the RGB color 255-255-255 (the total presence of color)?
   18. What is the RGB color 255-0-0?
   19. What is the RGB color 0-255-0?
   20. What is the RGB color 0-0-255?
   21. What is the RGB color 255-0-255?
   
   
   
   THE QUIZ OVER THIS LESSON WILL CONSIST OF:
   • (10 pts) Coding part; write a link!
   • (3 pts) Show me that you've marked the answers to all the questions in your text book.
   • (15 pts) Questions from the index cards and reading (see below).
     There will be 18 randomly-chosen questions; you will cross off 3 questions.
     The remaining 15 questions are worth 1 point each.
   
   Prepare for the quiz over this section by practicing below.
   Questions are asked in random order.
   You can generate a printable quiz with solutions.
   
   
   
   
   
   
   
   
   
   How many problems would you like on the quiz? (27 max)