FREE Circle Theorems Foldable | Inscribed Angles | SpEd Geometry

FREE 7-page sample of my Circle Theorems INB Foldables unit. Full inscribed angles lesson, cut-and-fold accordion template, practice + answer key. SpEd-scaffolded. Print and teach today.

Grab this FREE 7-page sample of my premium Circle Theorems Interactive Notebook Foldables unit — and see why teachers say it makes abstract geometry CLICK for struggling learners.

This isn't a watered-down teaser. It's a complete, teachable mini-lesson on the Inscribed Angle Theorem — the same lesson that appears in the full 70-page unit. You can use it in class tomorrow.

✨ WHAT'S INCLUDED (7 pages, 100% free)

Page 1 — Cover with UM Printables branding and "What's in this free sample" overview Page 2 — Color-Coding Legend & Sentence Frames — the 5-color system (red = central angle, blue = inscribed angle, green = arc, purple = chord, orange = tangent) plus 5 universal sentence frames and the 4-step problem-solving protocol Page 3 — Inscribed Angle Theorem Lesson — full theorem statement, color-coded diagram, worked example using the 4-step protocol, and Thales' theorem special case (inscribed angle on a diameter = 90°) Page 4 — Cut-and-Fold Accordion Template — actual printable 4-panel foldable with dotted cut lines, solid fold lines, and assembly instructions Page 5 — Practice Problems — 6 graduated problems with answer lines and sentence frame reminders Page 6 — Answer Key — all 6 solutions with lucid 4-step worked reasoning Page 7 — Get the Full Resource — premium CTA page with QR code linking to the complete 70-page unit 🎯 WHY THIS FREE SAMPLE IS WORTH YOUR TIME

It's genuinely usable. You don't need the paid product to teach a full lesson with this sample. Print pages 3–6, hand them out, and you have a complete inscribed angles lesson with practice and answer key.

It showcases the SpEd scaffolds. The color-coding system, sentence frames, and 4-step protocol are the same scaffolds used throughout the full unit. If they work for your students here, they'll work across all 7 foldables.

It's print-ready. Vector PDF, all fonts embedded, no prep required beyond printing and (optionally) copying the accordion template onto card stock.

📐 STANDARDS ALIGNMENT

CCSS.MATH.CONTENT.HSG.C.A.2 — Identify and describe relationships among inscribed angles, radii, and chords. (This sample focuses on the inscribed angle–arc relationship.)

CCSS.MATH.CONTENT.HSG.C.A.3 — Inscribed angles on a diameter are right angles. (Thales' theorem is covered as a special case.)

Grade band: 9–10 (Geometry). Also appropriate for Grade 11–12 Pre-Calculus review and Grade 8 advanced.

📦 HOW TO USE THIS FREE SAMPLE

Download and print pages 3–6 for a ready-to-teach inscribed angles lesson. Print page 4 (the accordion template) on card stock if possible — students cut, fold, and glue it into their notebooks. Project page 6 (answer key) for whole-class review, or print for absent students. If your students respond well to the color-coding, sentence frames, and 4-step protocol — grab the full 70-page unit (linked on page 7 and below) for all 7 foldables covering every circle theorem. 🚀 LOVE THIS FREE SAMPLE? GET THE FULL 70-PAGE UNIT

The complete Circle Theorems Interactive Notebook Foldables unit includes:

Foldable 1 — Parts of a Circle Vocabulary Flip Book (8-tab + 8 Frayer cards) Foldable 2 — Inscribed Angles Theorem Accordion (full version of this sample) Foldable 3 — Chord Properties 4-Tab Foldable Foldable 4 — Tangent Properties Tri-Fold Foldable 5 — Inscribed Quadrilaterals Discovery Foldable 6 — Angle-Arc Pocket Sort (16 cards) Foldable 7 — Cheat-Sheet One-Pager (8 theorems + decision tree) Cumulative Reflection Journal + 4-Section Answer Key + Teacher Notes Get the full unit here: 👉 Circle Theorems Foldables | INB | SpEd Geometry HSG.C.A.2 by UM Printables

❤️ WHY TEACHERS LOVE UM PRINTABLES

"Finally — a circle theorems unit my IEP students can actually access. The color-coding is a game-changer." "The discovery activities are gold. My students figured out the inscribed angle theorem themselves and were SO proud." "The 4-step protocol has transferred to other units. My students now use Identify-Label-Apply-Solve on their own." 🔖 MORE UM PRINTABLES RESOURCES

Triangle Congruence Interactive Notebook Foldables (SpEd Scaffolded) Right Triangle Trigonometry Discovery Unit Transformations on the Coordinate Plane Foldables Volume & Surface Area Mega Bundle Geometric Proof Sentence Frames Pack Follow UM Printables on TPT — followers get notified of new freebies and get 50% off any new paid resource for the first 48 hours.

📝 PLEASE REVIEW THIS FREE RESOURCE

If this free sample saved you prep time or helped a student, please take 30 seconds to leave a review. Reviews boost this free resource in TPT search, which helps other teachers find it — and every review tells me what to build next. Thank you!