Just like if you were writing a paper, when making a podcast you will want to start with an outline. Try and map out all the different pieces and the order you want to present them in. Think about the podcasts you like, or that you want to emulate. What makes them so fun to listen to? Is it they dynamic between two smart people having a conversation? Is it the way that a story unravels, or gets put together piece by piece? Think about how the story you want to tell could be presented. The links below are resources to help you through the planning process of designing your podcast episode.
Because a podcast includes music, sound clips, and music (as opposed to a simple audio recording of someone talking), you will need to edit your various audio clips. Audacity is a software that you can use to edit your podcast.