How to Calculate Speed: Distance Divided by Time

MatholiaChannel

This educational math video provides a clear, step-by-step tutorial on how to calculate speed using the formula Speed = Distance ÷ Time. Through three distinct word problems, the narrator demonstrates how to identify the relevant information (distance and time), apply the formula, and perform the necessary division to find the solution. The video covers different units of measurement, including meters per second (m/s) and kilometers per hour (km/h), and addresses a variety of scenarios such as the flight of an arrow, a person walking, and a cyclist riding. The key themes explored include the mathematical relationship between speed, distance, and time, as well as the practical application of division skills in real-world contexts. The video specifically tackles the concept of rates and unit rates. A notable mathematical moment occurs in the second example, where the video explains the specific rule for dividing by fractions (dividing by one-half is the same as multiplying by two), reinforcing arithmetic rules alongside the physics concept. For educators, this video serves as an excellent modeling tool for upper elementary and middle school math classes. It visualizes the problem-solving process by highlighting key numbers in the text and writing out the equation clearly on a virtual whiteboard. It can be used to introduce the concept of speed, review long division in a practical context, or help students understand the importance of including correct units in their final answers.