If you want to become a better problem solver, then this video is for you. This is video 5 of 7 in a series created to give you tips on how to improve your problem-solving skills. Drawing a sketch is something that can help you better visualize a problem that does not already have a diagram. Youtuber 3blue1brown explains this using a probability question, he creates a sketch in order to illustrate the problem. This helps him move forward with solving it.