WEBVTT 00:00:00.680 --> 00:00:04.880 Unplugged Activity | Getting Loopy 00:00:06.640 --> 00:00:09.080 Hi! My name is Miral Kobt. 00:00:09.080 --> 00:00:12.680 I'm the creator of iLuminate. 00:00:12.680 --> 00:00:15.830 In my work there is something I use in both dances 00:00:15.830 --> 00:00:20.200 and in programming light suits. And that is... loops! 00:00:20.200 --> 00:00:23.300 Loops are repeating an action over and over. 00:00:23.300 --> 00:00:28.320 When you repeat something multiple times, like my actions to keep the hula hoop spinning, 00:00:28.320 --> 00:00:31.480 I'm performing a loop of that action 00:00:31.480 --> 00:00:39.320 This is a loop 00:00:41.260 --> 00:00:47.600 Today we're going to have a dance party. We'll act out loops with a new dance: The Iteration. 00:00:47.600 --> 00:00:51.360 We're going to learn about loops using a dance. 00:00:51.360 --> 00:00:56.620 You'll learn a couple of easy steps and then repeat them over and over to complete the dance. 00:00:56.620 --> 00:00:59.480 Here are the steps you'll need to learn: 00:00:59.480 --> 00:01:04.099 clap your hands, put your hands behind your head 00:01:04.099 --> 00:01:08.080 put your hands on your waist, lift your left hand up 00:01:08.080 --> 00:01:11.179 lift your right hand up 00:01:11.179 --> 00:01:12.959 Pretty simple, right? 00:01:12.960 --> 00:01:16.660 Head, waist. Head, waist. Clap clap clap. 00:01:16.660 --> 00:01:22.200 Do you see how some steps are repeated? Such as clap? That's a loop! 00:01:22.200 --> 00:01:24.200 We need to do it two more, ready? 00:01:25.540 --> 00:01:30.200 You will discover that you can shorten the directions by putting some dance steps in loops. 00:01:30.200 --> 00:01:31.840 Are you ready? 00:01:31.850 --> 00:01:36.370 Now we're gonna do a belly laugh, ready? 00:01:38.780 --> 00:01:41.180 We actually do use loops in our dancing 00:01:41.180 --> 00:01:44.720 The dancers are wearing computers and they're all in the same network 00:01:44.720 --> 00:01:48.120 So I might loop the lights through the same dancers over and over again 00:01:48.130 --> 00:01:51.390 So in the loop I might have an iteration, I'll say you wanna go 00:01:51.390 --> 00:01:55.440 loop through these 6 dancers over and over again and then within the loop 00:01:55.440 --> 00:01:56.560 you'll want to increase the speed so that 00:01:56.560 --> 00:01:59.890 you're both looping through the same dancers but you're also increasing 00:01:59.890 --> 00:02:03.740 the speed of the lights so that it kind of plays a visual trick on the audience. 00:02:03.740 --> 00:02:06.420 And that's all created through loops. 00:02:06.900 --> 00:02:10.539 Loops are important in computer science because they make our work shorter and easier.