Hi there,
There are a number of resources out there for slide creation/templates (google is your friend here), but much more important is the story/outline that you create!
This isn't something that can be done "step by step" as every problem/presentation is different!
Rather, I recommend the following in terms of optimizing your take-home test potential:
I recommend the following:
- Remember that most casing tips apply here (i.e. be very clear+focused on the objective, ruthlessly cut out information that doesn't help you meet this objective/question, make sure to thinking + communicate in a structured way, etc. etc.)
- Practice/simulate this as much as possible beforehand...getting a coach to help you run through scenarios + how to react in inevitably challenging moments will do a world of good.
I have a number of written case I'd be more than happy to share with you! What I generally do with my candidates is, give them a written case x hours before our scheduled session (adjust # of hours based on the specific interview they're going to have), and then review their work during the session (as well as talk through tips+tricks to get better).
Good luck!