1. Comparing DataProjector Resources Comparing Data Projector Resources

2. Comparing DataProjector Resources How did you get to school this morning? Is there more than one feasible way or do you not really have a choice? James has got three options for getting to work. He has written down how long each one took him. How many times did he try going by car? How did you figure that out? Use what you notice about the data and the meaning of the numbers listed for bicycles, car, and walk-train-walk to answer the questions. Remember, you may only use the data given. P-1

3. Comparing DataProjector Resources What do these terms mean? How are they useful in making comparisons? P-2 Mean Median Range Outlier

4. Comparing DataProjector Resources P-3

5. Comparing DataProjector Resources Raj is traveling to work and he can go by bicycle or he can go by car. Your card has some data on it, but there is some data missing. At the top of the card, there is a description of the data and a conclusion about whether Raj should travel to work by bicycle or by car. Your task is to compete the data table so that it fits the description. P-4

6. Comparing DataProjector Resources Collaborative work: constructing data P-5 1.Use the information given to make up times to go in the table. The times are all in minutes. 2.Check that the data you create fits all of the information contained in the description at the top of the card. 3.Consider whether the numbers in the table are reasonable in the given context. Amend any that are not, ensuring that the card still fits the description.

7. Comparing DataProjector Resources Collaborative work: writing descriptions P-6 1.Cut along the dashed line. 2.Swap the data table with another group (A1s swap with B1s). 3.Write a description of the data you have just been given. Refer to the mean, median and range and comment on any outliers. (It may not match exactly what it said on that card!). 4.Explain whether you think Raj should travel to work by bicycle or by car.

8. Comparing DataProjector Resources Post Swap See what the similarities and differences are between what you wrote and what it said on the card. Maybe what you wrote was better? How close were your descriptions to the ones on the card? Check whether you came to the same conclusion about which mode of transportation Raj should use. Were there any significant differences? If so, why? P-7

9. Comparing DataProjector Resources P-8