Compare these averages to discuss sampling. Make a Box and Whiskers plot of the class data. Discuss the findings. Extension Students can use a map of their community to show the route they take to get to school, alternative routes can be plotted for best time or shortest distance. Have students work in pairs at the computer when gathering data.
Speed is a ratio, .
In the customary system of measurement that we commonly use in the United States, a person's traveling speed is usually stated in miles per hour. That is, distance is measured in miles and time is measured in hours. Discuss the difference of the ratio of the averages and the average of the ratios. Reporting Students will collect their own data for one week and report it on a data sheet. This data should reflect the time the student leaves home and arrives at the school site.