To introduce the idea of of networks, I would get my students to create a family tree using string and show how different members are connected (may use different coloured string for immediate/distant).

I would explain to students that online network is very similar and has many connections, eg. wifi, computers, Ipad, Phones etc.

I would get students to work together to show how wifi connects to a computer and that computer may connect to a printer or to another computer etc. I would use this as an anchor chart in the classroom.

See example in link provided. However I would first do a tangible version using real string then progress to a computer version as below:


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