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Friday, February 11, 2005

Countdown to π Day!

π Day is Coming! The clock has started counting down! You can't tell from the picture, but the arms on this clock are moving in the mathematically correct direction: counterclockwise.

Pictures like this always get me wondering.....

  • What π time is it?
  • How much longer do we have to wait (in hours and radians) until it's π (pie?) time?

Blogging Prompt

Look carefully at the picture. Make up an interesting question about it. Blog your question and follow up with your solution tomorrow. Let's see how many people in the class can answer your question! ;-)

Happy Blogging!


At 2/11/2005 10:04 p.m., Blogger sheena said...

to mr k and the rest of the precal 40S class,
uhh i don't know what or how to do this but here i am posting a..blog/comment? yess oh and to mr. k sorry about my name from hotmail. i dont usually put real info and so it was just a 'spur of the moment' type thing lol sorry if it was inappropriate lol but yesss so im getting everything so far in this class just need to memorize that circle by heart and i'll be okay. this blogging this is alright, gives me a valid reason to tell my mom that i need to go on the internet at 11:00 at night! haha well i hope this was good enough as a first 'blog'. bye!

At 2/11/2005 10:09 p.m., Blogger Alexisss ;-) said...

me and calvin were talking about the pi clock and we were just wondering how come pi/4, 3pi/4, 5pi/4 and 7pi/4 are missing... hmmm.. well does it really matter if its missing??

At 2/11/2005 10:12 p.m., Blogger blogster_gherard™ said...

Hwow! π day is comming! How much longer do we have to wait until it's π (pie?) time? *Nah...* I'm not interested in that... What i am interested to know is how much longer do I have to wait until i can have the pie(specially apple pies)!
(^_^) Just kidding!

At 2/11/2005 10:23 p.m., Blogger V@L said...

this is nothing to do with "pi day" or our lesson a while ago.

Q. What do you call a teapot of boiling water on top of mount everest?

At 2/11/2005 10:28 p.m., Blogger blogster_gherard™ said...

yes, just like what alexis posted.. how come there's no pi/4, 3pi/4, 5pi/4 and 7pi/4? and i was wondering if mr K. just edited an ordinary pic of a clock a and changed the numbers into radians... well... if i have a clock just like that in my room... it will be a tupsy-turvy town fer sure.

At 2/11/2005 10:43 p.m., Blogger V@L said...

maybe pi/4,3pi/4,5pi/4 and 7pi/4 are missing so that the "pi clock" is divided to 12 like the real clock.

At 2/12/2005 12:15 a.m., Blogger Liezl said...

well, it's kinda late at nite and i'm still online so i figured that i should post whatever i remembered in class today so that i won't forget it. so anyways. when mr. k was talking about how the tangent lines never intersect with the y axis and how it was undefined and how he also said that the tangent line gets bigger as it moves upward or counter-clockwise and well, it just reminded me about the link that had to do with the stick and shadow. and well, it was very interesting how those two relate. i'm not sure, but when i was playing around with the stick and shadow, when i reached 90 degrees... okay well i can't remember exactly, but i will check that out again, but when mr. k was talking about it, it just triggered my memory of just reading and experimenting with the stick and shadow link. just thought i'd post something before i forgot it.

At 2/14/2005 1:25 a.m., Blogger Mr. Kuropatwa said...

Here are the answers I got:

What pi time is it?
9pi/10 minutes, 13pi/30 seconds past the hour of 3pi/2

How much longer do we have to wait (in hours and radians) until it's pi (pie?) time?
2 hours, 32 minutes, 47 seconds or
pi/3 hours, 16pi/15 minutes, 47pi/30 seconds

Can you caome up with anymore questions and answers? ;-)

At 2/14/2005 10:35 p.m., Blogger calvinw. said...

can you show me how you did that? and about that quiz we had today, i blanked out. i guess its cause i missed the first 3 classes, i must say, im learning how to remember that circle's degrees and radians and co ordinates, thanks alot sheena and alexis (jennifer). im going to try and understand how to do all of this. thanks to all of you guys who are helping me, thanks!

At 2/15/2005 2:02 a.m., Blogger Adrien G said...

Shouldn't the 12 on the clock be lined up with the 0 in the radian circle. As then you would never be 15 minutes behind.

Oh and to find the minute or second of the pie clock use the equation 21x/200 to get the radian decimal. x=(minute or hour you want the clocks hand to be on).
but this is for a normal clock where the 0 in the radian circle would be in sync with the 12 of a normal clock.


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