Welcome to the Construction Zone

Geometry has always been about constructing dependencies into geometric figures and discovering relationships that are therefore necessarily true and provable. Dynamic geometry (like GeoGebra) makes the construction of dependencies clear. The game challenges at each level will help you to think about geometry this way and to design constructions with the necessary dependencies. The sequence of levels is designed to give you the knowledge and skills you need to think about dynamic-geometric dependencies and to construct figures with them. Your “construction crew” can accomplish more than any one of you could on your own. You can chat about what you are doing, and why. You can discuss what you notice and wonder about the dynamic figures. Playing as part of a team will prevent you from becoming stuck. If you do not understand a geometry word or a challenge description, someone else in the team may have a suggestion. If you cannot figure out the next step in a problem or a construction, discuss it with your team. Decide how to proceed as a team. Enjoy playing, exploring, discussing and constructing! NOTE: The challenges in the Construction Crew Game are designed for a crew of people playing together. You can read the challenges in this document (http://GerryStahl.net/elibrary/topics/game.pdf) or GeoGebraBook (http://ggbtu.be/b154045), and explore the example figures yourself in GeoGebra (http://geogebra.org). However, to work on a challenge, it would be best to meet your construction crew in a collaboration environment like the Virtual Math Teams (VMT) chat room. Hopefully, GeoGebraBooks will soon be collaborative.