1 00:00:04,700 --> 00:00:05,490 Hi everybody! 2 00:00:05,950 --> 00:00:08,260 It’s Jason from Collaborative Mathematics again, and this is 3 00:00:08,390 --> 00:00:09,590 Challenge Video #3. 4 00:00:10,460 --> 00:00:16,240 The Collaborative Mathematics blog here is still very experimental and so this 5 00:00:16,520 --> 00:00:21,010 video will be a little shorter, the challenge is a little smaller, and we’ll see 6 00:00:21,180 --> 00:00:22,520 what the response it like. 7 00:00:23,080 --> 00:00:26,980 Here’s the challenge: we’re going to count on our fingers, but we’re going to 8 00:00:27,060 --> 00:00:29,320 do it in an unconventional way. 9 00:00:30,040 --> 00:00:35,730 It’s starts like usual. We’ll start on your thumb with one, and then count like you 10 00:00:35,900 --> 00:00:39,740 do: one, two, three, four, five. Right? 11 00:00:39,880 --> 00:00:40,650 Can you see me? 12 00:00:40,790 --> 00:00:45,340 Then, we’re going to turn around and go back. We’ll keep counting, but we’re 13 00:00:45,510 --> 00:00:47,100 going to go back the other direction. 14 00:00:48,500 --> 00:00:55,400 I’ll start again: 1, 2, 3, 4, 5... 6, 7, 8, 9... 15 00:00:55,760 --> 00:00:59,610 And then turn around again: 10, 11, 12, 13... 16 00:00:59,780 --> 00:01:01,170 14, 15, 16, 17... 17 00:01:01,320 --> 00:01:01,880 18, 19... 18 00:01:02,360 --> 00:01:07,740 Do you see how this works? We’ll keep turning around and going back the other 19 00:01:07,900 --> 00:01:10,470 way, but we’re going to continue counting, 20 00:01:10,820 --> 00:01:17,110 and the question is: which finger are you on when you count the number 1000? 21 00:01:17,540 --> 00:01:21,300 So that’s it. That’s the core challenge this time. It’s shorter than usual in part 22 00:01:21,470 --> 00:01:25,920 because I’d like to see what the response is like to a slightly shorter challenge. 23 00:01:26,310 --> 00:01:30,180 But also because I’d kind of like people to keep thinking about Challenge Video 24 00:01:30,340 --> 00:01:35,680 #2. There’s a lot that’s in there to be curious about and I’m hoping that maybe 25 00:01:35,970 --> 00:01:39,850 we’ll get some other videos about Challenge #2. 26 00:01:40,130 --> 00:01:44,890 If you’ve thought about Challenge Video #2 and this multiply-and-flip concept, and 27 00:01:45,200 --> 00:01:49,620 you haven’t responded with your thoughts and observations, I would 28 00:01:49,750 --> 00:01:52,970 encourage you to do so ‘cause there’s still some cool stuff to think about there. 29 00:01:53,270 --> 00:01:54,760 So there you go! Check us out online. 30 00:01:55,000 --> 00:01:57,390 We’re at Collaborative Mathematics . org 31 00:01:57,560 --> 00:02:01,570 and from there you can find us on Facebook and Twitter and YouTube. 32 00:02:02,030 --> 00:02:04,920 And I look forward to seeing what happens next. Have fun!