At the end of the video, there is a quiz. A printable version of the quiz can be found here.
When students know how to find a fraction of a number or set, they can solve all kinds of higher order thinking problems. I also like teaching the concept this way because it helps students to see the connection between fractions and division. The more we find ways to connect concepts for children, it's only natural that their confidence soars and as for their problem solving abilities, well, they do the same!