Marble Rerun

Hi, at the end of term 2 we did a rerun of the Great Marble Challenge. The great marble challenge is when we make a ramp out of whatever we want but a marble has to roll down the ramp and make it 110cms away from the end of your ramp. For our rerun we got to make a new ramp or modify our ramp my group smashed our ramp and made a new one but we still used blocks. We made sure our instructions were clear this time because last time they weren’t so clear and also we made so that our ramp was stable. I think we improved from our last attempt because last time got zero points but this time we got around 20 points. Have you done this before?