Different ways of doing the switch. GNOME Documentation Project gnome-doc-list@gnome.org Switch Between Windows From the <gui>Activities</gui> overview:

Click on a window to switch to it and leave the overview. If you have multiple workspaces open, you can click on each workspace to view the open windows on each workspace.

From a workspace:

Press AltTab to tab through the different open application windows.

Press AltTabShift to tab backwards through the application windows.

If an application has multiple open windows, there is an arrow below the application icon which is seen when tabbing through the apps. Pressing the down arrow on your keyboard will allow you to tab through the multiple windows.