Lin and Diego both ran for 10 seconds, each at their own constant speed. Lin ran 40 meters and Diego ran 55 meters. Who was moving faster? Explain your reasoning.
How far did each person move in 1 second? If you get stuck, consider drawing double number line diagrams to represent the situations.
Use your data from the previous activity to find how far you could travel in 10 seconds at your quicker speed.
Han ran 100 meters in 20 seconds at a constant speed. Is this speed faster, slower, or the same as Lin’s? Diego’s? Student B’s?