In this video, students will learn about negative numbers and how they are represented on a number line. The video explains that negative numbers are written with the negative sign in front of the number, and they are located to the left of zero on the number line. It also covers how to locate positive and negative numbers on a number line and introduces the concept of integers, which includes positive numbers, negative numbers, and zero. The video provides clear examples and explanations to help students understand these fundamental concepts in mathematics.