Mind Reading Three

The Prediction @ Yahoo! Video

Squaring Trick

Card Trick

Well, this is a "Fun Math" blog. Techincally this post is more on the "fun" side than the "math" side, but if you look at the comments section I do address that. For now, enjoy the trick!



Once you have made your selection click here to continue.

Who is Your Role Model?

WHO IS YOUR ROLE MODEL?

Try this without looking at the answers......

Please don't look at the comments section until you do it, you'll love it I promise........no peeking?

GET A CALCULATOR (YOUR COMPUTER HAS ONE ON IT)

1) Pick your favorite number between 1-9

2) Multiply by 3 then

3) Add 3, then again multiply by 3 (I'll wait while you get the calculator....)

4) You'll get a 2 or 3 digit number..

5) Add the digits together

Now click on "comments" ..............

Note: I just got this email tonight - from a friend who claims not to like math! For all the people who say they don't like math it's amazing how many emails like this are circulating around out there!

Gifted?

Looks can be deceiving! Robin's REAL gift is with mathematics rather than with presents.

Click here to see her in action.

Can you figure out how she does this?

If you are in my Math 20 class and doing this for extra credit, see below for directions:

This is the final extra credit project for spring 2009. Try the trick. It should work every time. If you try it, and it isn't working, then you are not following directions correctly, so try again until you are able to follow the directions correctly. Then try it a few times to get a feel for how it works. Try to figure out what is going on. One approach is to look for a pattern. Can you figure out what gift she will say even without doing the math? What is she doing to make it work each time? A deeper question, that you need to answer in order to get all 10 points, is "Why does this work?" This is due on Thursday, April 23 at the beginning of class. Turn it in to my desk as you come in. GOOD LUCK!

Comic Book Math

Tonight while I was at Border's with my friend Tammy, her son Noah was reading DC Comic Books. He found a riddle in one of them and tried it on me.

Here's the set-up. The supervillian Felix Faust tries to lead the readers to believe he can read their minds. He says the following:

"Choose a number between 1 and 50, but don't tell me what it is.
Add 8 to it,
then subtract 5,
then add 7,
then subtract 6,
and then subtract your original number from that result."

He is then able to tell you what number you get as your answer, even though he didn't know what number you started with!! Yikes! Should you fear the mind-reading powers of this supervillian?





But then one of the superheros from the Justice League of America pops up and reassures the reader that supervillian Felix Faust is not really mind reading but that it is just a trick and encourages the reader to try it on friends to see that it works every time.

What number did Felix Faust say you came up with?

Does it work every time?

Would it work for numbers bigger than 50?

Chocolate Math

I often get forwards like the following in my email, and I thought I'd share this one here.

Fwd: Chocolate Mathematics


Just got this and its too cute not to share. :-)

Subject: CHOCOLATE MATHEMATICS?

This is really cool..................and it really works!!!
ENJOY!
Pretty Cool, just give it a try!
You can check your math skills with
the below quiz.

CHOCOLATE MATHEMATICS

This is pretty neat how it works out.

DON'T CHEAT BY SCROLLING DOWN FIRST
It takes less than a minute.......


Work this out as you read. Be sure you don't read the bottom until you've worked it out! This is not one of those waste of time things, it's fun.


1. First of all, pick the number of times a week that you would like to have chocolate. (try for more than once but less than 10)

2. Multiply this number by 2 (Just to be bold)

3. Add 5. (for Sunday)

4. Multiply it by 50 - I'll wait while you get the calculator................

5. If you have already had your birthday this year add 1759.... If you haven't, add 1758..........

6. Now subtract the four digit year that you were born.



You should have a three digit number .



The first digit of this was your original number (i.e., how many times you want to have chocolate each week).

The next two numbers are ..........

YOUR AGE! (Oh YES, it IS!!!!!)





THIS IS THE ONLY YEAR (2009) IT WILL

EVER WORK, SO SPREAD IT AROUND

WHILE IT LASTS. IMPRESSIVE, ISN'T IT?

Mind Reader 2

Check out the Flash Mindreader Page and see if they really can read your mind!

(At the site, if you scroll down, you'll see they've provided a place for you to do your work so that you don't even have to do it in your head!! How's that for a deal?)

The image at left is a lithograph done in 1935 by artist M.C. Escher, much of whose work uses mathematical ideas.

Mind Reader 1

If you want this guy to read your mind click on http://www.digicc.com/fido/

See if you can stump him. You might want to use your calculator to that you can work quickly and accurately.