Wireframe and Storyboard

I have heard about wireframe and storyboard before but never got to understand what those are. It was nice doing wireframe and storyboard group work last night. However, How actually often use these wireframe & storyboard in product management? The answer is all the time from my instructor but if you are product manager, you are not neccessarily doing this job all by yourself. If you have ux designer in your company, they would do it for you. Still, it’s good to understand what these are and how to do it.