My biggest obstacle is trying to measure the length, width, and height of the cardboard pieces. Since sometimes I miscalculate and cut a cardboard piece short. Which therefore makes the game uneven and makes it harder.

If I did this again, one thing I would do differently is to enforce the obstacles inside and make sure the marble won’t get stuck. I would also make it so the pillars supporting my design is more stable and does not tip to one side.

Overall, I think this project was successful because the kids liked it and had fun. It also functioned alright and nothing broke, I also had fun making it.