I created the video featured here, which discusses how switches work, as a tool that might be added to the Girls Make IT Google Classroom resources. I like the idea of creating video-based instruction for the site, because it will make it easier for the girls to share their learning with others and to revisit concepts at their leisure.
In the process, I learned something new about YouTube and how it can be used to advance Universal Design for Learning! Did you know that you can add a transcript to videos in YouTube, allowing your viewers to see the audio written out in text? Under the settings of YouTube, you can do this by typing in your own Subtitles or Closed Captions. Or, you can have YouTube translate the script using a voice to text feature. (When I tried that, however, I had to go in and edit several of the captions.)
To access a transcript, you'd simply need to go to description of the video and click on "More" to find the "Transcript" option. Alternatively, you could turn the captions on if you wanted to see the text at the bottom of the video.