This clip explains how the number line can be used to better understand the idea of inequality, which is based on the fact that, if two numbers aren't equal, one must be greater than the other.
This clip explains that the point associated with a number is called its graph, while the number itself is called the coordinate.
This clip summarizes the number line and how it can be used to show which of two whole numbers is greater, according to where each appears on a straight line. The clip revisits related concepts, including unit distance, graphs, coordinates, inequali...
This clip explains the concept of the number line, a kind of road map on which every whole number has a corresponding point. The points are in order, just like the numbers, and the distances between them are equal.
This clip demonstrates how "less than" and "greater than" look on the number line. We learn that with any two whole numbers that are not equal, the greater number will always appear on the right, and the smaller number always appears on the left.