On the first activity, We had to build a crane. The Criteria said It needed to be 1.8 meters tall and it must be rigid ( unable to bend or be forced out of shape; not flexible). First we did the box base and added some zigzag-ies to make it strong. The next thing we did is to make it longer so it can lift a bag. The 3rd step is to do the hook, We didn’t have a hook so we used a rope so we can tie it. The 4th step is to test it ( our one worked )