## Geometer’s Sketchpad Essentials 2 – Constructing a rectangle

This is the second tutorial in the Geometer’s Sketchpad Essentials Series. In the first tutorial of this series, we used Geometer’s Sketchpad to construct medians of the triangle and found out that the medians intersect at a point. In this tutorial, we are going to learn how to use parallel and perpendicular lines to construct a rectangle.

Step by Step Instructions

2.) Construct a segment using the Segment tool.

3) Select the Text tool and click the two points to create their labels. These points are named A and B. » Read more

## Geometer’s Sketchpad Essentials 1 – Locating the Centroid

This is the first tutorial in the Geometer’s Sketchpad Essentials (GSP) Series.  In this tutorial, we are going to investigate the medians of a triangle. We will learn how to use the basic tools: Point Tool, Selection Arrow Tool, and the Segment Tool. If you are not familiar with GSP, you may want to read Introduction to Geometer’s Sketchpad. The output of our tutorial is shown in the Figure above; points D, E, and F are midpoints of the sides of triangle ABC» Read more

## Introduction to the Geometer’s Sketchpad

This is the first part of the Geometer’s Sketchpad Essentials Series.  In this post, we will learnabout Geometer’s Sketchpad and its environment before we use the software.

Geometer’s Sketchpad (GSP) is a commercial geometry software created my Nicolas Jackiw in the 1980s. It is similar to GeoGebra, but with fewer tools. On the one hand, it is more difficult to construct geometric objects using GSP compared to other dynamic geometry software; but, on the other hand, it can be inferred that because of the lack of tools, it may improve geometric construction knowledge better than many geometry software.

The Geometer’s Sketchpad (version 4.07) window is shown in the figure below. For now, we will be using this version in our tutorials (I have not bought a new version yet).  However, all of the tutorials in this series are also compatible with the latest version (version 5). » Read more