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Zero the Math Hero: Circles & Arcs

19 minutes 45 seconds

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In this 12-part series, students will learn to define the term circle and how to find angle measures for central angles and arcs. The distance formula is used to find the length of a radius on a graph and the midpoint formula is reviewed in order to find the coordinates of the center of a circle on a graph. Perpendicular bisectors are also used in this lesson to find the center of a circle. Students will learn: diameter, radius, arc (minor, major, semicircle), central angle, chord, tangent, and secant. Part of the "Zero the Math Hero" series.

Media Details

Runtime: 19 minutes 45 seconds

Topic: Mathematics
Subtopic: Geometry, Mathematics
Grade/Interest Level: 6 - 9
Standards:

Release Year: 2012
Producer/Distributor: TMW Media Group
Series: Zero the Math Hero
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Zero the Math Hero, a man in black costume with a black cape and mask, holds up his left hand while talking in front of a beige background. Caption. We can think of a point as a specific location.

Zero the Math Hero talking. A black line with 2 arrows and points on either side marked A and B is above green text that reads, "Segment. A part of a line with 2 endpoints." Caption. We can define a line segment as.

Zero the Math Hero talking in front of a line with 2 arrows and 3 points marked A, B, and C. Green text on screen reads, "Coordinate. The number for a point on a number line." Caption. We're going to find the length of some of these segments here.

Zero the Math Hero leans forward in front of a dry erase marker drawing of the Eiffel Tower with green hills behind it. Caption. Sometimes it's known as the Cartesian coordinate system.

Zero the Math Hero walks to the left while smiling and holding a red flag with white writing. Caption. Be right back.

Zero the Math Hero wears a pirate hat in front of a dry erase marker drawing of a tiny island with a single palm tree. Caption. I also have other tricks in me measure chest.

Scalene right triangle next to Zero the Math Hero. The longest line is labeled, "hypotenuse, C." Caption. Here, we use the variable C to represent its length.

Zero the Math Hero wears a tan cowboy hat and blue overalls and holds a pitchfork while standing in a wheat field with tall trees behind it. Caption. See you back at Studio Z, math fans.

Black rectangle with labels showing the shorter sides are 6 meters in length and the longer sides are 10 meters. Zero the Math Hero stands to the right of it. Caption. For instance, this rectangle's perimeter could have been found.

Zero the Math Hero holds up a tan acoustic guitar in front of a beige background. Caption. I'm sensing that you're not sure you're up for this challenge.