How this resource helps
Develop AA similarity proofs through dilation, rigid base alignment, a same-half-plane choice, and uniqueness of intersecting angle rays. Explore reflections, reductions, off-origin parameters, inverse sequences and invalid or circular arguments. Warm-ups, teacher modeling, guided practice, collaborative practice, independent work, small-group reteaching and exit tasks support evidence-based teaching. The suggested three-session pathway selects tasks from a reusable 60-task bank; completing all 60 in three days is not required. This course-based NC Math 2 packet is not restricted to a single grade. Customer ZIP contains the approved PDF only. No editable Word file is included. All 149 pages are available in the preview.
What’s Included
- 149-page printable PDF
- 30 multiple-choice tasks with explanations and distractor checks
- 30 open-response tasks with worked solutions
- Suggested three-session learning-target pathway
- Seven instructional sections with teaching scripts
- Worked AA similarity model, visual anchor and proof-planning graphic organizer
- Original coordinate diagrams and student workspaces
- 21 labeled continuation pages for extended reasoning; not additional tasks
- Scoring guidance and learner record
- Source alignment and attribution
Resource details
- Grade / course
- NC Math 2
- Subject and resource type
- Mathematics · Worksheet packet
- Files
- 149 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-SRT.3 — Use transformations (rigid motions and dilations) to justify the AA criterion for triangle similarity. Course-based high-school standard; not assigned to a single grade.