Lesson Plan
Curated OER

Arc Length Lesson

For Teachers 9th - 11th
Young scholars find the length of the arc of a circle. In this geometry instructional activity, students calculate the length of an arc and find the measure of the central angle given the length of the arc. They convert between linear...
Lesson Plan
Curated OER

Arc Length and Sectors

For Teachers 9th - 12th Standards
Find the length of an arc. Students relate central angles to the area and length of a sector and graph circles on the TI to make predictions.
Lesson Plan
Curated OER

Arc Length - Horse

For Teachers 9th - 12th
Young scholars define an arc and calculate its length. In this geometry lesson, students find examples of arc in the real world. They show their understanding of arcs through problem solving.
Lesson Plan
Curated OER

Arc Measurement Based on The Measurement of a Central Angle

For Teachers 9th - 10th
Students define keywords that are important to solve problems. In this geometry lesson, students find the arc length and angle of a circle. They convert between radians and degrees.
Lesson Plan
Curated OER

Secants, Tangents and Arcs

For Teachers 9th - 12th Standards
High schoolers identify chords and angles. In this geometry lesson, students calculate the length of the chords inside and outside of-the circle. They differentiate between tangent and secant lines.
Assessment
EngageNY

Geometry Module 5: End-of-Module Assessment

For Teachers 9th - 12th Standards
The lessons are complete. Learners take an end-of-module assessment in the last installment of a 23-part module. Questions contain multiple parts, each assessing different aspects of the module.
Lesson Plan
Curated OER

Math: Arcs and Chords

For Teachers 9th - 10th
Students draw diagrams demonstrating how it is possible to two central angles to be congruent and their minor arcs are not congruent. In groups, they illustrate theorems with their constructed circles, create diameters of circles that...
Lesson Plan
Curated OER

Measuring the Earth

For Teachers 10th - 11th
Learners identify types of arcs and angles in a circle, find the measure of arcs and angles, and solve real world problems involving lengths of segments in circles, lengths, and areas.
Lesson Plan
Curated OER

Angles and Arcs

For Teachers 9th - 10th
Students discuss the sum of central angles and use string to create them on circles. They find the measure and length of both minor and major arcs. Students give examples of concentric, similar, and congruent circles and congruent arcs.
Lesson Plan
Curated OER

Sectors of Pizza

For Teachers 8th - 10th
Young scholars identify the properties of a circle. In this geometry lesson, students relate properties of diameter to sections of a pizza. They calculate the measure of an arc and missing angles.
Lesson Plan
Curated OER

Measurement of a Central Angle

For Teachers 9th - 11th
Students calculate the measurement of a central angle. In this geometry instructional activity, students identify properties of circles. They use Cabri software to create and analyze graphs.
Lesson Plan
Curated OER

Plain Figures and Measuring Figures

For Teachers 10th - 12th
Students investigate basic geometric concepts. In this geometry lesson, students explore solids through measuring and modeling. This assignment models the importance of understanding concrete objects in geometry.      
Lesson Plan
Curated OER

Are you in Golden Shape

For Teachers 7th - 10th
Learners solve and verify the solution for unknown measures. In this geometry instructional activity, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.