Source: Cyberchase: “Mother’s Day”
Funding for the VITAL/Ready to Teach collection was secured through the United States Department of Education under the Ready to Teach Program.
National K -12 Subject:
Lesson Plans Using this Resource:
In this video segment from Cyberchase, Bianca is driving to visit her friend. Her driving instructions say that she has to drive 3.2 miles and then make a turn. She checks her car odometer and calculates the distance she must drive by adding the 3.2 miles to the odometer reading. Unfortunately, she makes a calculation error and ends up driving too far.
Download and ShareInvestigations/Scott Foresman (2006)
Name That Part,
Investigation 1, Session 4: pp. 2--3
Between Never and Always
Investigation 1, Sessions 1 and 2, pp. 4-18
Measurement Benchmark
Investigation 1, pp. 25-37
Here are some Frame, Focus and Follow-up suggestions for using this video in a math lesson.
What is Frame, Focus and Follow-up?
Here are some suggestions for using this video:
Frame: When people keep track of mileage, a lot of times they use the odometer in their car. This device records the distance the car has traveled. Some odometers display only whole numbers while other odometers include the parts of each mile. What kind of numbers do you think odometers use to record the parts of a mile?
Focus: While watching the segment, try to spot the mistake Bianca makes when she adds the distance she has to travel before the turn to her current mileage. See if you can figure out what the odometer reading should have been in order for her to make the turn at the right place.
Follow Up: What was the addition problem Bianca should have done? What addition problem did she do instead? What was the error she made that created the incorrect equation? If you had to add a whole number and a decimal number, could you do it in your head or would you need to write it down?
BIANCA: wait a minute. I can use the odometer. It keeps track of the miles I’m driving.
The odometer reads 126. If I add that to the distance I need to drive to get to Wells Road then the odometer reading will indicate where to turn.
So when the odometer says 158, I should be at the turnoff for Wells Road.Great!!!
I love these chips, but they’re so salty. I need a drink.
Ahh, I needed that.
Oh no. I need to find a rest stop. Now.
I’ve still got 10 miles to the wells road turnoff. I hate to waste more time, but I really have no choice.
Oh, no!
I’m not supposed to be in Long Island! What happened?
At Stein Street and Central Ave the odometer read 126. The directions said to go 3.2 more miles. I made a mistake! I added 32 miles to 126 and got 158 miles.
Instead, I should have added three and two tenths miles to 126. That equals 129 and two tenths.
Geraldine, I’m afraid I won’t get there in time to make the concert. At the visitor’s center, the one with no public restroom when you need one -- in Valley Stream, Long Island.
Really? A shortcut? Cool!
India.Arie, here I come!
As soon as I find a restroom.
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