Radian Measure and Arc Length
In this math activity, students examine circles of with its radius. They measure the angle and arc. Finally they express the radians of the central angle.
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Arc Length and Area of a Sector
What do skateboarding and baked goods have in common with math? You can use them to connect half-pipe ramps and cakes to arcs and sectors. Pupils compare the lengths of three different ramp options of a skate park. They calculate the...
9th - 11th Math CCSS: Adaptable
New Review Measuring Arc Length: Lesson
Slice off a piece of pi! A section of an extensive playlist on geometry develops the formula to find the length of an arc. Using the formula, the presentation works through examples finding the arc length, the radius, and the measure of...
3 mins 7th - 11th Math CCSS: Adaptable
Find Radian Measure by Dividing Arc Length by Radius
In an approach that meshes higher-level thinking with approachable methods, this presentation walks that fine line between mathematical rigor and applications with skill. Not only are the specific steps for finding the radian measure of...
6 mins 9th - 12th Math CCSS: Designed
New Review Arc Lengths and Sector Areas
Sometimes the whole circle isn't necessary for our purposes. Learners identify ways to determine the arc length and sector areas of circles. An activity that requires measuring cans helps review the concepts of circumference and area.
9th - 12th Math CCSS: Designed
Conversion between Degrees and Radians: Arc and Radians Relationship
How are arc lengths and radians related? An interactive resource demonstrates the relationship as pupils create arc lengths in a unit circle and compare them to the angle measurements. Questions ask individuals to build upon this...
10th - 12th Math CCSS: Designed