STEP ONE: Clearly identify the audience and purpose of your interactive ebook. It’s easier to write if you know exactly who your reader is and what you want the ebook to do for that reader.
You may feel like you have a good handle on this, because you’ve taught your class for a while and are familiar with your students and their needs. Even if you are not writing for your own class, but rather with an eye to adoptions on the national market, it’s still important to explicitly articulate your audience and purpose, and keep both in mind at all times.
Knowing your audience and purpose will help keep the tone, level of writing, and types of interactive activities appropriate. It will guide your content and help you focus as a writer. It will ensure the ebook is accessible and student-friendly, as opposed to being appropriate for an audience of your professional peers.