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: Circles have a radius, a diameter, an area and a circumference. Sometimes it's helpful to know the diameter of a circle—like with a bicycle tire or a pizza. Other times it's more helpful to know the circumference—like when you want to make a circular fence around a trampoline or swimming pool. What is the relationship between the circle's radius and its diameter? Can you think of other things that are measured by their radius or diameter?
Focus: Pay attention to how the CyberSquad figures out the circle's circumference based on its diameter. Note what the relationship is that exists between the diameter and the circumference.
MATT: I don’t know what Hacker’s up to, but we gotta get outta here fast!
JACKIE: How? We can’t even get through the gate to get to the code book!
DIGIT: Yes we can!
DIGIT: I forgot about this!
DIGIT: First you put in a cyber-coin. Then you get a can. All the cans in here have a key to open the gate! All ya do is pick the label that fits the can - ya know, the one that goes all the way around the can just right.
INEZ!/JACKIE/DIGIT: How about this one?/Uh-uh, I think it’s this one?/No, the long one!
MATT: Let’s just try this one!
MATT: Nope, too short!
JACKIE: Didge, we need another coin!
DIGIT: Right. Last one. So no guessing this time.
INEZ: We need to figure out for sure which label fits the can. How do we do that?
MATT: I’ve got it! I can measure around the can with this licorice.
MATT: No I can’t, it keeps slipping. But wait! I can measure the diameter. Does that help?
INEZ: Dunno... Do you think there’s a way to use the diameter to figure out the circumference?
JACKIE: Worth a try! Let’s measure some circles and see. Let’s try this round rock.
MATT: First the diameter.
JACKIE: And now the circumference.
JACKIE: Man, the circumference is a lot longer than the diameter!
JACKIE: About one...two...three times longer!
DIGIT: So it takes a little more than three diameters to equal the circumference of this circle!
INEZ: Let’s see if the same is true for this bigger circle!
INEZ: The diameter...and the circumference.
MATT : Huh! Different size circle, but same result: the circumference is still a little more than three times the diameter. We’re good to go!
JACKIE: What was that?!
DIGIT: The most terrifying Creeper of all--the King Creeper!
JACKIE: We gotta get through that gate NOW!
MATT: Okay, the diameter is this long!
INEZ: And we know the rule: to reach all the way around, the length of the label has to be a little more than three times the diameter!
DIGIT: Hurry...measure it already!
MATT: One diameter, two diameters, three diameters...and a little bit more!
MATT: Now we need the label that matches this length! Touchdown!
JACKIE: All right!
JACKIE: It fits just right!
JACKIE: Yes! I got the key!
DIGIT: Open the gate! Open the gate!
INEZ: Hurry! Hurry!
Academic standards correlations on Teachers' Domain use the Achievement Standards Network (ASN) database of state and national standards, provided to NSDL projects courtesy of JES & Co.
We assign reference terms to each statement within a standards document and to each media resource, and correlations are based upon matches of these terms for a given grade band. If a particular standards document of interest to you is not displayed yet, it most likely has not yet been processed by ASN or by Teachers' Domain. We will be adding social studies and arts correlations over the coming year, and also will be increasing the specificity of alignment.