Fundamental principle of counting | Permutations and Combinations | Grade 11 | Math | Khan Academy

In this video, we cover the fundamental principles of counting. We realise through the examples discussed in this video that the principle is all about AND and OR. We learn through non-math examples, how we can slow down our thinking process and break individual steps apart. As we move along the examples shown in the video, we get familiar with the vocabulary of AND (multiplication) and OR (addition) which we'll use throughout this chapter. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! (https://www.khanacademy.org/math/ncer...) Timestamps: 00:00 Example 1 (Using the operator OR) 01:56 Example 2 (Using the operator OR - branched) 02:57 Example 3 (Using the operator AND) 04:21 Fundamental principles of counting 5:12 Practice problem 1 (Using both AND and OR) 6:48 Practice problem 2 (Using AND and OR - branched) 08:42 Practice problem 3 (Using AND twice - round trip) Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Ashish Gupta