IM 6.2.9 Lesson: Constant Speed

Find the following quotients mentally.
[math]30\div10[/math]
[math]34\div10[/math]
[math]3.4\div10[/math]
[math]34\div100[/math]
Your teacher will set up a straight path with a 1-meter warm-up zone and a 10-meter measuring zone. Follow the following instructions to collect the data.
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[/img][br][br][list=1][*]The person with the stopwatch (the “timer”) stands at the finish line. The person being timed (the “mover”) stands at the warm-up line.[/*][*]On the first round, the mover starts moving [i]at a slow, steady speed[/i] along the path. When the mover reaches the start line, they say, “Start!” and the timer starts the stopwatch.[/*][*]The mover keeps moving steadily along the path. When they reach the finish line, the timer stops the stopwatch and records the time, rounded to the nearest second, in the table.[/*][*]On the second round, the mover follows the same instructions, but this time, moving [i]at a quick, steady speed[/i]. The timer records the time the same way.[/*][*]Repeat these steps until each person in the group has gone twice: once at a slow, steady speed, and once at a quick, steady speed.[/*][/list]
After you finish collecting the data, use the double number line diagrams to answer the questions. Use the times your partner collected while you were moving. Moving slowly:
After you finish collecting the data, use the double number line diagrams to answer the questions. Use the times your partner collected while you were moving. Moving quickly:
After you finish collecting the data, use the double number line diagrams to answer the questions. Use the times your partner collected while you were moving.
Estimate the distance in meters you traveled in 1 second when moving slowly.
Estimate the distance in meters you traveled in 1 second when moving quickly.
Trade diagrams with someone who is not your partner. How is the diagram representing someone moving slowly different from the diagram representing someone moving quickly?
Lin and Diego both ran for 10 seconds, each at a 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 [i]you [/i]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? Yours?
Lin and Diego want to run a race in which they will both finish when the timer reads exactly 30 seconds. Who should get a head start, and how long should the head start be?
Close

Information: IM 6.2.9 Lesson: Constant Speed