Teaching your kids about money: What is a capital gain?

I love watching this lesson; thank you! As I watched this young entrepreneur read, I realized that there may be some value in tailoring the vocabulary to be more age-appropriate. For example, capital can be introduced to as "goods". I have not seen these flashcards in their entirety, so there may be transitional steps that I am unaware of which fill in this gap. Regardless, this is a useful resource.