Think of a toaster at breakfast. Something goes in, something happens inside, and something comes out. What are those three things?

Those three breakfast ideas have names: input is what goes in, process is what the technology does, and output is what comes out.

Every technology has all three. Turn to a neighbour and name one part for a torch: what goes in, what it does inside, or what comes out. Be ready to share.

Look at the three columns on the board: Input, Process, Output.

We will place the cards for a torch together. Call out which column each card belongs in: press the switch, electricity goes to the bulb inside, beam of light.

Your group gets one device card: a toaster, an automatic door or a pencil sharpener. Nobody gets the torch, because we mapped that one together.

• First, stay at your places and agree the three parts for your device, then write one on each of three sticky notes (or sketch three boxes) so everyone in the group can see them: input, process, output.
• Some groups will then take a turn on the shared floor spots labelled Input, Process and Output. When it is your group's turn, bring your notes with you, stand on the spots in order and say your three parts to the class.
• While you are waiting or watching, listen to each group and check whether their three parts make sense, because you may be asked whether you agree and why.

If your group is watching, do not name the three parts. We already know those. Say which part stopped, and what you saw that told you.