Day 7 in Mat115H

Today:

• Announcements
  • Your equation homework is returned.
  • Sorry, I haven't finished grading your mobius homework yet. A comment, however:
    One word answers are (almost) never acceptable.

    I'm not interested in the answers -- I generally know them -- I'm interested in your thought process. More words are (generally) better than too few.

  • You do have a new assignment for next time. More in a moment.

• Any more problems to look at in the Arithmetic text (p. 30)?

• About time:
  • International Date Line
  • A stopped versus a slow clock....
    • How do we tell time with the slow clock? That is, how do you give the correct time?

• About bases!
  • The Great Fraudini (and your next assignment)
  • Here's the handout for background
    • What's the idea behind bases?
    • Let's look at the questions at the bottom of the page of the handout.
  • They mention Little Twelvetoes, a schoolhouse rock production (which is kind of fun -- Lewis Carroll would like it!).
  • Tom Lehrer sings about bases (here are the lyrics - local copy). Here's a math club member lip-syncing it!
  • How was Carroll using bases to do the math in chapter two of Alice in Wonderland? On about the third page of chapter two, Alice starts speaking out some bizarre equations:

    "Let me see: four times five is twelve, and four times six is thirteen, and four times seven is -- oh dear! I shall never get to twenty at that rate!"

• Preview: Hits from Fit the Second
  • What new insight do we get into Carroll's character?
  • Algebra problems of p. 50