Parts of a Circle Flash Cards

Radius, diameter, chord, and tangent come to life in these Parts of a Circle Flash Cards, a printable PDF set of 12 minimal cards for ages 6 to 12 that builds clear geometry vocabulary. Each card highlights a single part of the circle in soft purple, so the new word and the image connect without distraction. 📦 What's Included 12 flash cards: radius, diameter, chord, segment, circumference, arc, sector, area, tangent, quadrant, semicircle, and center Layout: 4 cards per page, 3 printable pages, with dotted cutting guides Labels: clear lowercase print, easy for early readers 🔵 Learning Benefits Build precise geometry vocabulary for circle work Strengthen visual discrimination between similar terms like chord and diameter, or sector and segment Support upper elementary calculation work with circumference and area Encourage independent review and self-correction ✏️ How to Use Offer the cards after a hands-on lesson with the circle insets from the geometry cabinet or the fraction insets Invite children to trace each highlighted part on a real circle inset, then find the matching card Keep the set on the geometry shelf as a vocabulary reference during drawing and measuring work Older children can use the cards alongside compass constructions and circumference problems 🎓 Teaching Tip from a Montessori Guide I introduce radius, diameter, and circumference first, since children meet these most often in their work. Once those feel familiar, I add chord, arc, and tangent. In Montessori, flash cards like these are a reference, not a drill. The understanding comes from handling the materials, and the cards give that understanding its name. Format: Digital PDF download, sized for US Letter and prints well on A4. Delivered instantly. No physical product will be shipped. 🔗 Pair This With Geometric Shapes Nomenclature Cards for the full geometry cabinet vocabulary Shapes Flash Cards, a gentle starting point before circle parts Fractions Pairing Cards Level 1, a natural next step once sectors and quadrants make sense Geoboard Shapes Cards for hands-on shape building 📚 Explore More Montessori Math Printables Flash Cards