Source: Cyberchase: “A Broom of One’s Own”
Funding for the VITAL/Ready to Teach collection was secured through the United States Department of Education under the Ready to Teach Program.
In this video segment from Cyberchase, the CyberSquad is racing to get to Motherboard before Wicked does. Both Wicked and the CyberSquad have flying brooms that they can use to get there. The CyberSquad must adjust the speed on a broom in order to get to Control Central before Wicked.
Here are some Frame, Focus and Follow-up suggestions for using this video in a math lesson.
What is Frame, Focus and Follow-up?
Frame: We often measure how fast something can go. For example, most cars can travel at a speed of 60 miles per hour. This means that if the car drives at that same rate for an hour, it will travel 60 miles. What other speeds have you heard of or read about? What sort of measurement is involved in finding out the speed? What measurement tools would be needed?
Focus: As you watch, listen carefully to hear the speed of Wicked’s broom. Compare that speed to the test model broom the CyberSquad finds. Try to determine who will get there first and explain why you think that.
Follow Up: What were the speeds of the two brooms? How much faster was the test model broom that the CyberSquad had than Wicked’s broom? Control Central was 6000 cybermeters away. If it was only 3000 cybermeters away, do you think the CyberSquad would have arrived there first? Why or why not? The speeds of the brooms were very important in this story. Do you think you could figure out your running speed? How would you do it?
JACKIE: The only way to save Motherboard is to get to Control Central before Wicked, but the cyberpod is down so -- the brooms! We'll fly there on the fastest brooms. These!
MATT: But you heard what Wicked said. Her army's brooms are ten times faster than those - we'd never catch 'em.
DIGIT: Sheesh! How fast is ten times faster?
INEZ: Well, if that broom goes 5 cybermeters per second - then Wicked's ten times faster brooms have a speed of 50 cybermeters per second!
JACKIE: If only we could make this go faster.
MATT: Can't. The speed of the factory brooms is preset - they won’t go any faster.
DIGIT: Never fear, the Didge is here! Wicked said this old test model has one ride left in it!
MATT: Let's see...it says here, it can go...50 cybermeters per second!
INEZ: That's how fast Wicked's going!
JACKIE: But if we go the same speed Wicked's going - we won't reach Motherboard before she does!
DIGIT: Then we need to go faster!
MATT: Wait a second! There's another setting here! A hundred cybermeters per second!
INEZ: Okay. According to this map, it's 6000 cybermeters from here to Control Central. If we go a hundred cybermeters per second, it should take us...
JACKIE: ...60 seconds! A minute!
DIGIT: Wicked said she only needs two minutes to get there.
INEZ: That gives us time to spare - but not much!
MATT: Setting broom for one hundred cybermeters per second!
JACKIE: Mother B...here we come!
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