So, you might think, why do we care about machines if they don’t do work for us? Well, here’s the thing: machines can take work that’s hard for us to do and make it easier by shifting it around.
Read together the thought bubbles and emphasize that many complicated machines use electrical or gas power. You may wish to challenge students to list human-powered tools such as skateboards, ice skates, pole vaulting, a swing, a child’s pedal car, a scooter, a pencil, a screwdriver, a hammer, etc.
To elicit more responses, you could take time to list them by categories such as writing tools, construction tools, transportation, and toys.
Some of the tools you list are, combine, or include examples of the six simple machines defined by Archimedes.