The Great Marble Challenge
![Great marble challenge cover. Great marble challenge cover.](/var/tki-eesoll/storage/images/instructional-series/connected/connected-2014-level-4-what-s-the-evidence/the-great-marble-challenge/424663-1-eng-NZ/The-Great-Marble-Challenge_resource_image.jpg)
by Ian Stevens
illustrated by Dennis Poole
A teacher challenges his class to design a ramp that will get a marble to stop at any set distance between 500 millimetres and 2 metres from the end of the ramp. What processes will the students follow to meet this challenge?