How this resource helps
Use whole-figure evidence to identify all reflection axes of triangles and quadrilaterals. Describe rotation symmetry using the actual center and applicable angles, develop regular-polygon symmetry rules, and verify or refute claims through coordinates and vertex correspondences. The suggested three-session pathway treats reflection as exact coincidence, develops rotation and regular-polygon relationships, and uses coordinates for verification and critique. Seven instructional sections include warm-up, modeling, guided and collaborative practice, independent practice, small-group reteach and exit tasks. Select a few tasks at a time; the reusable 60-task bank is not intended to be completed in full in three sessions. Worked teacher keys and original mathematical visuals support distinctions between congruence and symmetry, an allowed angle and the smallest nonidentity angle, and evidence from a diagram versus stated geometric conditions. Tracing can test a conjecture; explanations should justify it. This packet addresses the NC Math 2 course standard, not a grade-specific standard. Download contains one 124-page PDF in a ZIP. No editable Word or PowerPoint files are included. Review the full SAMPLE-watermarked preview before purchasing.
What’s Included
- 124-page student and teacher PDF
- 30 multiple-choice questions with option explanations
- 30 open-response tasks with worked teacher keys
- Daily learning targets and suggested three-session pathway
- Original polygon diagrams, coordinate models and response organizers
- Teacher guidance, modeling, practice, reteach and exit tasks
- Full 124-page SAMPLE preview
Resource details
- Grade / course
- NC Math 2 (high school course; not a grade-specific standard)
- Subject and resource type
- Mathematics — polygon symmetry · Detailed standard-aligned student and teacher packet
- Files
- 124 main PDF pages · PDF + ZIP
- Estimated completion time
- Suggested three-session pathway; flexible task selection across additional meetings.
- Answer key
- Worked teacher keys included. Multiple-choice keys explain every option; open-response keys identify reasoning and evidence to assess. Collect independent responses before revealing answers.
Standard or objective
NC.M2.G-CO.3 — Given a triangle, quadrilateral, or regular polygon, describe any reflection or rotation symmetry, i.e., actions that carry the figure onto itself. Identify center and angle(s) of rotation symmetry. Identify line(s) of reflection symmetry.