Students master circle vocabulary using dynamic interactive flashcards covering terms such as radius, diameter, chord, and circumference. Learners flip through cards to connect each term with its visual representation on a circle diagram. This activity supports TEKS 7.5.B and 7.9.B (identify and use circle vocabulary) and aligns with Common Core 7.G.B.4.
Skills: geometry vocabulary, visual identification, circle properties, content review. Grades 6-10.