To install GP4 on a Mac, download the latest version, open the disk image that downloaded and open the GP4-template that gets mounted on the desktop. Then follow the steps inside the GP4-template window.
Note: In order to see the instructions once you open the GP4-template, you may need to set the View of the GP4-template window to as Icons if your default view is something other.

The detailed steps are shown below for additional information.

1. Download the latest version of the disk image (DMG) file.
   
   
2. Locate the downloaded setup-gp4.dmg disk image file (below) and double-click it.
   
   

   The downloaded disk image file.

   
   
   
   
3. The GP4-template disk will appear on the desktop.
   
   

   The GP4-template disk mounted on the desktop.

   
   
   
   
4. If the GP4-template window (below) does not open automatically, double-click the GP4-template icon (shown above) to open it.
   
   

   The GP4-template window with the "View" set to "as Icons".

   
   
   
   
5. If your GP4-template window View is not set to as Icons (as shown above), use the View menu to set it to as Icons.
   
   

   Setting the "View" to "as Icons".

   
   
   
   
6. Once the view is set to as Icons, click and drag the GP4 icon (A) to the Applications folder (B) and drop it.
   NOTE: Do Not double-click on the "A" icon to run GP4. Doing so will limit the functionality GP4 and it will not be installed in the Applications folder on the Mac.
   
   

   The GP4-template window labeled for step 6.

   
   
   
   
7. To start GP4, double-click the GP4 alias icon (C).

Note for hosts, teachers and students: Make sure to enter your username and password in the Account Setup Preferences and click the Validate Account button.