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Interpreting Distance-Time Graphs
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Homework
  • Improving Individual Solutions to the Assessment Task (10 minutes)
      • Return to the students their original assessment task, Journey to the Bus Stop, as well as a second blank copy of the task.
        • Look at your original responses, and think about what you have learned in this lesson.
        • Using what you have learned, try to improve your work.

      If you have not added questions to individual pieces of work, then write your list of questions on the board. Students should choose from this list only the questions that they think are appropriate to their own work.

  • Solutions: Journey to the Bus Stop
      1. The graph shows Tom's journey is split into four sections. The straight lines indicate that Tom moves at a constant but different speed in each section.
        1. In this section of the journey, Tom walks away from home at a speed of 2 meters per second (100 ÷ 50) for 50 seconds.
        2. The negative slope here means a change in direction. At 100 meters from home, Tom starts to walk toward home. He walks for 60 meters at a speed of 3 meters per second (60 ÷ 20).
        3. At the start of this section, Tom changes direction. He is now walking away from home at a fast pace. His speed is 4 meters per second (120 ÷ 30). He moves at this speed for 30 seconds and covers 120 meters.
        4. Here the slope is zero. This means at 160 meters from home, Tom stops. It has taken him 100 seconds to get to this point.
      2. The speeds provided in the answer to question 1 are realistic. A speed of 2 meters per second is a brisk walk. A speed of 4 meters per second means Tom is running.
  • Solutions: Collaborative Activity
    • Graph Interpretation Table Graph Interpretation Table

      A

      5

      W

      B

      10

      S

      C

      4

      V

      D

      2

      Q

      E

      6

      T

      F

      3

      G

      1

      P

      H

      8

      R

      I

      7

      U

      J

      9

      X


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