Learn about computer science, and explore using Scratch (scratch.mit.edu).
Watch the video.
Click the green arrow below the video when finished!
"Happy Go Lucky" by Scott Holmes (http://freemusicarchive.org/music/Scott_Holmes/Music_for_TV__Film/Happy_Go_Lucky) -- Licensed by CC BY 4.0 (http://creativecommons.org/licenses/by/4.0/)
"laptop and stethoscope" by jfcherry (https://www.flickr.com/photos/67272961@N03/6123892769/) -- Licensed by CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0/) -- Image scaled up, cropping edges