Editing Nailed It (section)

== Why This Works ==

When the nails are being placed on top of the larger nail, students need to be careful about where the weight is distributed. The ''Center of Gravity'' for the nails is centered based on where the weight and any forces acting on the nails is distributed. By being careful, students will find that they can carefully get the nails to balance on top of the larger nail by having their center of gravity on the head of the larger nail.

As they try to solve this demonstration, students will find that they need to use ''Problem Solving'' skills to get to the answer. They first need to '''''D'''efine'' what the problem is. Students then go into '''''E'''xploring'' options to solve the problem, and '''''A'''pplying'' the options that they think will work best for the problem. After they apply each option they come up with, they then need to '''''R'''eview'' the choice they went with, and use the results to find the correct method to solve the problem.

To solve this problem, students will have to follow the steps in a way similar to the following:
* '''D'''efine: Try to balance 20 small nails on the large nail.
* '''E'''xplore: The 20 nails look too wide to stack directly on top of the large nail. To get the 20 nails on top, they will have to be spread out and be able to hold each other up. This could be done by having several nails laid across a single nail, with the nail heads holding each other in place.
* '''A'''pply: Lay out a single nail, and place nail heads on the nail, having the nail heads go between sides to lock each other in place. Once this is done, place the last nail on top, down the center. pick up all the nails by the ends of the two laying across, and carefully lift it and place it on the large nail's head.
* '''R'''eview: The method did work, and the 20 nails are all balanced on top of the nail head.