Accordions can be a good way to put a lot of content onto a page without all of the scrolling but they do hide content which makees them less useful for people skim reading.
On a page, add a Rich Text widget to a Section
Before you start hit enter many times more than the number of accordians that you want to make. It is easy to accidentally nest your accordians. It is easier to come back and remove extra spaces at the end.
Click on the Template Button (star icon) in the visual editor toolbar to select a Template
Select Accordion
Replace the template text with the text you would like to use e.g.
Leave space between the end of your accordian and the next accordian you place.