This product is part of Unit 10 (Introduction to Circles). Get the full unit or even better, the full year below: Geometry Full Year Curriculum (lessons, Homework, Reviews, Assessments, Answer Keys, All editable)This Geometry lesson introduces students to the fundamental concepts of circles, including key vocabulary such as radius, diameter, chord, tangent, and secant. Through clear instruction, guided examples, and structured practice, students learn how to identify and describe the parts of a