Accessing the Widgets Screen
You can find widgets on the Widgets screen, where 48 preinstalled widgets for different tasks are listed. Tapping a widget can provide you a variety of information such as stock market news or the weather. (By default, you have a weather widget on your Home screen.) A widget can also act as a world clock or initiate functionality from a parent app, such as Maps, when you tap it. Though you can apply widgets to a Home screen, some widgets must be configured.
Tap Apps on the Home screen.
Scroll left and right through the pages of widgets. The number of pages depends on the Galaxy Tab 3 model you have and your screen orientation.