Virginia Department of Education
Circles in the Coordinate Plane
Make the connection between the distance formula and the equation of a circle. The teacher presents a instructional activity on how to use the distance formula to derive the equation of the circle. Pupils transform circles on the...
Mathematics Vision Project
Module 2: Congruence, Construction and Proof
Construct yourself a winning geometry unit. A set of lessons introduces geometry scholars to constructions and proofs with compasses and straightedges. It also covers triangle congruence through transformations. This is the second of...
EngageNY
Unknown Area Problems on the Coordinate Plane
Scholars determine distances on the coordinate plane to find areas. The instructional activity begins with a proof of the formula for the area of a parallelogram using the coordinate plane. Pupils use the coordinate plane to determine...
EngageNY
Proving the Area of a Disk
Using a similar process from the first lesson in the series of finding area approximations, a measurement resource develops the proof of the area of a circle. The problem set contains a derivation of the proof of the circumference...
Curated OER
Motion in a Circle
Students study about deriving centripetal acceleration for motion at constant speed around a circle.
EngageNY
Construct an Equilateral Triangle (part 2)
Triangles, triangles, and more triangles! In this second installment of a 36-part series, your young mathematicians explore two increasingly challenging constructions, requiring them to develop a way to construct three triangles that...
Lisa Staab Shadburn
Play Therapy Activities to Enhance Self‐Esteem
Discover activities to help learners increase self-awareness, build peer and family relations, and develop positive self-esteem. Here you'll find six suggestions for instilling a sense of confidence and self awareness in youngsters. Each...
Curated OER
Why Mosquitoes Buzz in People's Ears
Students appreciate African folktales, make "connections" between geography and literature, and research facts about Africa's animals and present findings through art and writing.
Other popular searches
- Geometry Circle Proofs
- Circle Proofs Line
- Circle Proofs in Geometry
- Circle Proofs Length
- Circle Proofs Congruence