Last week in Room 13 we read the book 'The Lighthouse Keeper's Lunch' by Ronda and David Armitage and then we looked at pulley systems.  Our challenge for the week was to create our own ziplines to carry things from place to another.  First we had to decide if we were going to work on our own or a buddy before we made a plan of our zipline.

After we had planned out our design we got to build them.

Then we tested them out to see if our designs worked.