Name_________________________________________________________
CCSS
A.REI.3
Date __________
Weather
You are driving 60 miles per hour on Interstate 80 heading west at 6:00 P.M. You
are 200 miles from Toledo, Ohio, and 250 miles from the Ohio/Indiana border.
A rain storm near Chicago, Illinois is 400 miles from your location and heading
east at 40 miles per hour.
MICHIGAN
Your
location
Chicago
Toledo
OHIO
INDIANA
WEST
VIRGINIA
KENTUCKY
1. Assuming you and the rain storm are heading directly toward each other at
constant speeds the entire way, at what time do you expect to meet the
storm?
2. Do you expect to have reached the Ohio/Indiana border before it starts
raining? Explain your reasoning.
3. You change your plans and take a 45-minute break near Toledo. Does it
rain during your break? Explain your reasoning.
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Big Ideas Math
Performance Tasks
3
CCSS
A.REI.3
A.REI.3
Common Core State Standard
Solve linear equations and inequalities in one variable, including
equations with coefficients represented by letters.
CCSS
A.REI.3
Grading Rubric
Answers
Score
1. 10:00 P.M.
1
2. no; Sample answer: You are still in Ohio when it starts to rain.
2
3. no; Sample answer: It does not start raining in Toledo until 11:00
P.M.
2
Precision
1. Student finds the time it takes to meet the storm and applies it to
2
the stated time of day.
2. Student compares the time it takes to get to the border to the time
it takes to meet the rain storm.
2
3. Student determines what time it will rain in Toledo, or how far the
storm is from Toledo when you stop and if it can travel the
remaining distance in 45 minutes.
Total Points
4
Big Ideas Math
Performance Tasks
1
10
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All rights reserved.