Equations of Circles
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50 minutes
Free
Routines:
Chromebooks
Lesson Prep
Lesson Details
Duration: 50 minutes
Learning Goal: Introduce equations of circles by exploring and practicing with Desmos. Then, apply findings with formal notes.
Prework
Make sure you have Chromebooks or some other class set of technology.
Classwork
Standards
Common Core
HSG.GPE.A.1 – Derive the equation of a circle of given center and radius using the Pythagorean Theorem; complete the square to find the center and radius of a circle given by an equation.
TEKS
G.12(E) – show that the equation of a circle with center at the origin and radius r is x² + y² = r² and determine the equation for the graph of a circle with radius r and center (h, k), (x – h)² + (y – k)² = r²