Source: Cyberchase: "Be Reasonable"
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In this video segment from Cyberchase, the CyberSquad is trying to get to Ms. Fileshare on the 20th floor. There are three ways to get to the 20th floor of the Cybrary, but the CyberSquad is not sure which of the three possible travel methods will stop in the Science room, where Ms. Fileshare is located. The CyberSquad creates a 3x3 matrix and receives some clues to help them figure out how they can reach the Science room.
Download and ShareHere are some Frame, Focus and Follow-up suggestions for using this video in a math lesson.
What is Frame, Focus and Follow-up?
Frame: Let’s say you were offered a choice of three places to go on vacation. You like certain things about each place, and dislike certain things about each one as well. How might you arrange the information to help you make a good, informed decision about where to go on vacation?
Focus: In this video segment, the CyberSquad must figure out which method of travel will allow them to reach the Science room on the 20th floor of the Cybrary. As they get clues, Jackie says, “I need to see what I’m thinking.” What does she mean, and what does she do about it?
Follow Up: How does the 3x3 matrix help the Cybersquad figure out which method of travel will bring them to the Science room on the 20th floor? How are they able to eliminate possibilities? To find the answer to their problem, the Cybersquad took the clues and represented it using toy cars and cards. Could you create a chart to display the same information? What would it look like?
INEZ: So much for the elevators.
DIGIT: We need to find another way up to the twentieth floor - and fast!
MATT: We'd better split up and look.
JACKIE: Hey guys, over here! This tube delivers mail all over the Cybrary! Maybe it can deliver us to the twentieth floor!
DIGIT: Check this out! The Cybrary carts go up this chute!
INEZ: Looks like you can get off at any floor.
MATT: Whoa! Look at this! This thing looks like a time machine from some sci-fi movie!
DIGIT: It's a teleporter pad.
INEZ: A teleporter pad?
DIGIT: Yeah, Ms. Fileshare uses it when she has to get somewhere fast! You can ride 'em...well, sorta.
MATT: So there are three different ways to get to the 20th floor: mail tube, cybrary cart, and teleporter pad. Let's just pick one and go!
JACKIE: Matt wait! We can't just pick one and go. We have to be sure it stops in science.
DIGIT: And here is the Answer Lady, at your service.
MATT: My card's used up. Jax?
JACKIE: Got it!
KIOSK VOICE: Each card user is limited to three answers to questions.
JACKIE: Yeah yeah, we know...and straight answers this time, okay? Ahem. My question is...Do any of these vehicles stop in Science?
KIOSK VOICE: Each vehicle goes to a different room on the twentieth floor. Do you want another answer?
JACKIE: A straighter one than that, please!
KIOSK VOICE: The Cybrary cart only goes to the History Room. You have one answer remaining on this card. Do you want another?
JACKIE: Spit it out.
KIOSK VOICE: The mail tube does not stop at rooms whose names begin with the letters 'F' through 'W'.
JACKIE: 'F' thru 'W'? What is she talking about now?!
MATT: Great. The Kiosk didn't say anything about the Science room and now Jackie's card is used up.
DIGIT: Let's go, lady, keep the facts comin'!
INEZ: Didge, wait! Your card and mine are the only ones left that we can use - so we better not waste them. Who knows how many questions we'll need to ask to reach Ms. Fileshare!
JACKIE: Make room! I've gotta pace!
INEZ: I say we do what we did before - take a closer look at the facts we already have.
JACKIE: I don't know about you, but I need to see what I'm thinking.
INEZ: We know that each vehicle can only go to one room on the 20th floor.
DIGIT: Duh! Sorry, that's my cyber coupe collection.
JACKIE: Digit you're a genius! Thanks Inez. Let's pretend this is a Cybrary cart, this is a mail tube, and this is a teleporter... cart, tube, teleporter. And these cards represent the three rooms on the twentieth floor. Science, Art, and History. Now let's picture all the possibilities. The cart can go to Science, Art, or History, right? Now how about the tube?
MATT: The tube might go to each of those rooms also, but so what?
INEZ: Wait a second, she might be onto something. The same is true for the teleporter.
JACKIE: Right! So here are all of the possibilities. What else do we know?
MATT: The Kiosk said the Cybrary Cart only goes to the History Room.
JACKIE: News we can use. If the Cybrary Cart only goes to History...
INEZ: Then it can't go to Science or Art.
MATT: Now we know that the cart goes to History. And since each vehicle goes to a different room on the twentieth floor, than it's impossible for the tube and the teleporter to go to History. So let's get rid of those possibilities.
DIGIT: Hey, those 2 facts really gave us a lot of info. Who knew?
INEZ: And we know one more thing. The Kiosk said the tube doesn't go to rooms beginning with 'F' through 'W'.
DIGIT: 'S' is between 'F' and 'W'. So I guess the Tube doesn?t go to Science.
JACKIE: You got it Didge. Take that one off. Now Look! That means the tube is the one that goes to Art.
MATT: And since that's true, the teleporter can't go to Art. And now there's only one possibility left. The teleporter's the one we've been looking for. That's the one that goes to Science!
DIGIT: We thought we didn't know anything, but we knew a lot. Amazing!
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