Sequences, Series, and Pattern
This is an interactive video made by Richard Rusczyk, the man in Mathcounts Mini. A Youtube channel that made for dedicated students around the world especially for grade school students preparing for the Raytheon Mathcounts Competition series.
In the video, he provided techniques on how to approach problems about Fibonacci series and a grid pattern.
This is already his 46th video series. You can find the rest of his videos in their Youtube Channel.
This is a paragraph to know more about that guy in the video. Taken from the staff page of Art of Problem Solving website.
“Art of Problem Solving was founded by Richard Rusczyk in 2003 to create interactive educational opportunities for avid math students. Richard Rusczyk is one of the co-authors of the Art of Problem Solving classic textbooks, author of Art of Problem Solving’s Introduction to Algebra, Introduction to Geometry, and Precalculus textbooks, co-author of Art of Problem Solving’s Intermediate Algebra and Prealgebra, one of the co-creators of the Mandelbrot Competition, and a past Director of the USA Mathematical Talent Search. He was a participant in National MATHCOUNTS, a three-time participant in the Math Olympiad Summer Program, and a USA Mathematical Olympiad winner (1989). He graduated from Princeton University in 1993, and worked as a bond trader for D.E. Shaw & Company for four years. AoPS marks Richard’s return to his vocation – educating motivated students.”