Depending on the page your are working on, you will want to either have the title of it show or be hidden from the front end of the site.
To do this follow the steps below:
1. Go to content.
2. Select the page you want to edit
3. Select the gear icon at the top left portion of the content block called Page Title
4. Select the display toggle OFF (Grey means OFF, Blue means ON)
Note: the page title content block doesn't always have to lay on the top. You can adjust where it lays in the stack by holding down your curser over the three lines next to the top left of the section you want to move. From there you can drag it below or above whatever content you like.