Hi everybody!
It’s Jason from Collaborative Mathematics again, and this is
Challenge Video #3.
The Collaborative Mathematics blog here is still very experimental and so this
video will be a little shorter, the challenge is a little smaller, and we’ll see
what the response it like.
Here’s the challenge: we’re going to count on our fingers, but we’re going to
do it in an unconventional way.
It’s starts like usual. We’ll start on your thumb with one, and then count like you
do: one, two, three, four, five. Right?
Can you see me?
Then, we’re going to turn around and go back. We’ll keep counting, but we’re
going to go back the other direction.
I’ll start again: 1, 2, 3, 4, 5... 6, 7, 8, 9...
And then turn around again: 10, 11, 12, 13...
14, 15, 16, 17...
18, 19...
Do you see how this works? We’ll keep turning around and going back the other
way, but we’re going to continue counting,
and the question is: which finger are you on when you count the number 1000?
So that’s it. That’s the core challenge this time. It’s shorter than usual in part
because I’d like to see what the response is like to a slightly shorter challenge.
But also because I’d kind of like people to keep thinking about Challenge Video
#2. There’s a lot that’s in there to be curious about and I’m hoping that maybe
we’ll get some other videos about Challenge #2.
If you’ve thought about Challenge Video #2 and this multiply-and-flip concept, and
you haven’t responded with your thoughts and observations, I would
encourage you to do so ‘cause there’s still some cool stuff to think about there.
So there you go! Check us out online.
We’re at Collaborative Mathematics . org
and from there you can find us on Facebook and Twitter and YouTube.
And I look forward to seeing what happens next. Have fun!