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University of Nebraska–Lincoln

Mid-America Transportation Center

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Lesson Overview
Lesson Title:
Speed Limits

Teachers:
Mrs. Michelle Kunze (Primary)

Brief Description:
Students will collect data of vehicle speeds on a major street near our school and work through the process of determining speed limits with a visit from a civil engineer.

Topics Introduced:
graphing, mean, median, mode, range, traffic engineering

Transportation, Distribution, and Logistics Curriculum Framework Components Addressed:
Logistics Planning and Management Services
Transportation Systems/ Infrastructure Planning, Management and Regulation
Health, Safety and Environmental Management
Suggested Grade Levels:
8th Grade

Subjects:
Mathematics
Standards Taught:
8.5.1 Math 2006
8.5.2 Math 2006
8.5.4 Math 2006
8.6.3 Math 2006

Lesson Information
Learning Expectations:

Students will be able to apply graphing skills to an engineering topic.

Plan Of Action:

Before:Weeks ahead of time I contacted city of Grand Island, NE for traffic info which is in place now so I won't have to do that in future years. The engineer at that time (he has since resigned) was willing to come help with the lesson if the engineering student would not have been able to. The Transportation Center was able to line up an engineering student.
If I am unable to find a lidar gun (radar gun) before next year, I will have to determine where on the road would be the safest for kids to get the speeds of the vehicles using the formula d=rt.
During class: One 90 minute class period
*10 min - introduce lesson, discuss safety outside, put on safety vests
*15-30 min - outside - record data
*15-30 min - teach 5 number summary, box&whisker plots
*10-15 min - show and discuss keynote with traffic information
* 5 - exit slip

Data Set Used:

Students will collect their own data.

Materials Needed:

Lidar guns (1 per group of 4 students preferred) OR Stop watches (2 per group)
laptop and LCD
keynote from city engineer with traffic study information
paper
pencil
clipboards for students recording the data

Preparation Period:

Contact someone with lydar gun to record speeds OR determine two locations on road as 'start time' and 'end time' to determine speed with formula d=rt

Implementation Period:

One 90 minute class period
*10 min - introduce lesson, discuss safety outside, put on safety vests
*15-30 min - outside - record data
*15-30 min - teach 5 number summary, box&whisker plots
*10-15 min - show and discuss keynote with traffic information
* 5 - exit slip

Science, Math, Engineering and / or Technology Implications:

Students will be exposed to the work of a traffic engineer.
-hands-on experience with collecting data with a purpose
-hands-on experience with using lydar gun
-realization of importance of data collection and making good decisions from the data (safety of public)
- realization of possible work conditions for a traffic engineer (not always behind a desk, often outside)

Unexpected Results:

It was interesting to see how my ideas of which kids would or would not like the experience matched up with who actually did or didn't.

Considerations for Diversity in Education:

visual and hands-on learners were able to see & do the activity for themselves, not just hear about it

students with weak English were able to participate fully in this lesson


Lesson Files
Speed Limits on City Streets
powerpoint made by Grand Island city engineer to show city council how speed limits are determined
[size: 1478656] [date uploaded: Mar 03, 2011, 9:20 am ]

Speed Limit lesson
scripted lesson plan
[size: 133016] [date uploaded: Mar 03, 2011, 11:53 am ]

Speed limit lesson plan
lesson plan
[size: 27062] [date uploaded: Mar 19, 2011, 8:10 pm ]

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