Today's Project: Pulleys
wooden dowels (or chopsticks or hefty skewers...)
heavy things (blocks, books, bag of flour, etc.)
rope or cord or string
pulleys (a variety, from the hardware store)
The Monkey goes bananas / Bloom, C. P.
(I'm actually fairly proud of this book as an option for pulleys. Here's a photo of the pulley action:
Where I found inspiration (or "what the kids were instructed to do"):
play with commercially made pulleys
make some pulleys with spools and sticks
What the kids did:
played with the commercial pulleys
made their own pulleys with spools
Hindsight tips: This one was tricky because I couldn't connect the pulleys to any stationery objects (like the underside of a table or the ceiling, so the parents ended up holding the pulleys which affected how the pulley worked ("if I pull down on this string, my mom's hand also goes down just a bit and that's holding the pulley....").
Variations to try:
use your pulley to pick things up
use multiple pulleys made of spools
if you have a staircase or tree, this is a lot of fun!
Simple Machines by Tinybop