Learn fundamental combinatorics concepts through a 26-minute mathematics video that uses a Halloween candy scenario to explore combinations, permutations, and the binomial theorem. Master how to calculate different possible combinations when selecting items from a larger set, understand the relationship between combinations and permutations, and discover how Pascal's triangle can be used to quickly determine binomial coefficients. Explore practical applications of these concepts through clear explanations and examples, progressing from basic combination problems to more complex topics like expanding binomials and understanding the binomial theorem.