Students master circle vocabulary by matching terms such as radius, diameter, chord, and circumference to their locations on a circle diagram. Learners drag each label to the correct part of the circle, reinforcing geometric vocabulary. This activity supports TEKS 7.5.B and 7.9.B (identify circle vocabulary) and aligns with Common Core 7.G.B.4.
Skills: geometry vocabulary, labeling, visual identification, circle properties. Grades 7-8.