Using Geogebra you can teach your high school student how to explore constructions. In this lesson, students will be given a worksheet and told to make an obtuse, acute, and right triangle of the orthocenter, centroid, circumcenter, and Euler’s line. This will let students have a chance to be creative in math. Since the student will be making their own kind of triangles. It is important to have student explore on there own to find out something and this lesson does just that. Also this lesson can lead into the history of a famous mathematician, Leonhard Euler.