One way to demonstrate your ability to create an Instructional Module with non-linear navigation is to create a table of contents that links the user to different stages of your lesson and back. Here is a screencast that will show you how to create a table of contents (non-linear navigation).
There are specific instructions for setting up your PowerPoint for use as an Instructional Module. Here is a screencast that takes you through the steps.
PowerPoint Setup – Kiosk
Designing Navigation in PowerPoint
If you are building a PowerPoint Instructional Module, you will need to create your own navigation. This screencast will demonstrate methods for creating navigation using buttons and hyperlinked text.
PowerPoint Navigation
Designing a PowerPoint Presentation
This instructional screencast will show you how to design your PowerPoint Presentation or PowerPoint Instructional Module.
PowerPoint Design
Changing Templates in PowerPoint
This instructional screencast will show you how to use more than one template when creating a PowerPoint Instructional Module or a PowerPoint Presentation.
PowerPoint Templates
Is there an alternative to PowerPoint?

With 280 Slides, you can create beautiful presentations and access them from anywhere. You and your students can share your presentations with the world. There is no software to download and nothing to pay for.
If you are new to classroom presentations, you can learn more about creating PowerPoint presentations at Education World.
You can find a Microsoft PowerPoint Tutorial here.