Concept Quiz: Sector Area & Arc Length

Lesson Prep

Lesson Details

• Duration: 50 minutes

• Learning Goal: Assess conceptual understanding and procedural fluency for sector area & arc length.

• Students have the entire class period to finish the quiz.

Prework

• Make sure you have a class set of compasses for constructions

• Consider joining our free online workshop to learn more about Standards Based Grading

Classwork

• Concept Quiz

Finished Early?

• Spiraling Practice

• Constructions Challenge (Lisa Bejarano)

• Minute to Win It – Caddy Stack

Standards

Common Core

• HSG.C.B.5 – Derive using similarity the fact that the length of the arc intercepted by an angle is proportional to the radius, and define the radian measure of the angle as the constant of proportionality; derive the formula for the area of a sector.

TEKS

• G.12(B) – apply the proportional relationship between the measure of an arc length of a circle and the circumference of the circle to solve problems

• G.12(D) – describe radian measure of an angle as the ratio of the length of an arc intercepted by a central angle and the radius of the circle