The study of circles in Geometry concludes with Concentric Circles. Introduce Concentric Circles using the PowerPoint presentation. Students practice these concepts using Boom Cards. The PowerPoint presentation can be used for distance learning as well as in the classroom. Printable Montessori 3 part nomenclature cards are also included. The following concepts are presented in relation the the radii of two circles: concentric circlesannulusIncluded:PowerPoint PresentationThree Part Nomenclatures