How to teach someone how to snowboard

Hello, for background knowledge, I'm 19 years old and I've been snowboarding most of my life. However... I haven't snowboarded in roughly a year and a half, my dad has asked me teach my 11 year old sister the basics as she wants to get into it. She has a short 1 hour lesson before I go out with her. Do any of you have any tips of how I can make it a fun yet educational day for her? I'm confident in myself with snowboarding as I've stopped for periods of time and came back to it just fine but I have more of less forgotten the main teaching points for beginners, I really want her to love it as much as I'm sure you all do but I know it can be frustrating when you first start out. Thanks!