How this resource helps
Specify complete sequences of uniform dilations and rigid motions, verify every corresponding part, and use preserved relationships to reject invalid similarity claims. Develop triangle similarity arguments by scaling to congruent size and then justifying rigid alignment. Explore off-origin centers, reversed sequences, factor direction, reflection and correspondence, with explicit distinctions between triangles and general figures. Build understanding through warm-ups, teacher modeling, guided practice, collaborative practice, independent work, targeted reteaching, and exit tickets. A suggested three-session pathway organizes learning targets and task selection; the full 60-task bank is reusable across additional meetings and is not a requirement to complete every task in three days. Teacher keys explain reasoning and check every multiple-choice alternative. This course-based high-school NC Math 2 packet is not restricted to a single grade. Customer ZIP contains the same approved PDF only. No editable Word file is included. All 147 pages are available in the preview.
What’s Included
- 147-page printable PDF
- 30 multiple-choice tasks with answer explanations and distractor checks
- 30 open-response tasks with worked solutions and assessment guidance
- Suggested three-session learning-target pathway
- Seven instructional sections with teaching scripts
- Worked similarity model, visual anchor, and transformation/correspondence reasoning organizer
- Student response space and coordinate diagrams where applicable
- 20 labeled continuation pages for extended reasoning; not additional tasks
- Evidence-based scoring guidance and learner record
- Source alignment and attribution
Resource details
- Grade / course
- NC Math 2
- Subject and resource type
- Mathematics · Worksheet packet
- Files
- 147 main PDF pages · PDF + ZIP
- Estimated completion time
- Suggested three-session pathway; flexible task selection across additional meetings.
- Answer key
- Worked teacher keys are included. Collect independent student responses before revealing answers; multiple-choice keys explain every option, and open-response keys identify evidence to assess.
Standard or objective
NC.M2.G-SRT.2 NC.M2.G-SRT.2a — Specify and verify an ordered sequence of rigid motions and uniform dilations mapping one entire figure onto another. NC.M2.G-SRT.2a — Audit whole-figure similarity claims and justify rejection with an invariant, not just one failed proposed sequence. NC.M2.G-SRT.2b — Use dilation properties to turn proportional triangle sides into equal sides, then justify a rigid alignment with the corresponding angles. NC.M2.G-SRT.2b — Track correspondence, factor direction and intermediate triangles to evaluate or repair transformation-based similarity arguments. Course-based high-school standard; not assigned to a single grade.