Option 2: Describe a classroom activity that involves students encoding and decoding data. You might involve another system that is used to convey information (e.g. Braille, flag systems, sign language, other cultures) or incorporate a resource (e.g. story, song). If you are a teacher trainer, you might describe a professional session for teachers. If you are teaching remotely, let us know how you could teach this online or how you might take an existing activity you have found and adapting for students learning from home.
I would create a treasure hunt where students are give flags of different countries. Then using the first letter from each country using it to find the end goal.