FREE Dilations & Similarity Sampler | Grade 8 CCSS Math

🆓 FREE GRADE 8 MATH SAMPLER — DILATIONS & SIMILARITY TRANSFORMATIONS

12 pages. $0. Ready to print. Ready to teach.

Try a complete unit before you buy one. This free sampler gives you 12 pages of real, classroom-ready content from the UM Printables 66-page Dilations & Similarity Transformations Complete Unit — including guided notes, worked examples, practice, a mini-quiz, and a complete answer key.

No fluff. No preview-only filler. This sampler gives students and teachers a genuine look at the instructional format and problem-solving approach used in the full unit.

📚 WHAT'S INSIDE (12 PAGES)

**Page 1 — Cover** UM Printables branding and CCSS overview.

**Page 2 — Vocabulary Cards** 4 of the 12 vocabulary cards from the complete unit:

• Dilation • Scale Factor (k) • Similar Figures • AA Similarity Criterion

**Page 3 — Topic 1 Guided Notes — CCSS 8.G.A.3** • Definition of a dilation • Center and scale factor • Coordinate rule (x, y) → (kx, ky) for a center at the origin • Real-world photo-enlargement connection

**Page 4 — Worked Example 1 — CCSS 8.G.A.3** Triangle ABC is dilated about the origin with k = 2.

• Vertex-by-vertex dilation table • Pre-image → rule → image coordinates • Labeled coordinate-plane diagram with dashed dilation rays

**Page 5 — Dilation Drill** 5 practice problems with student workspace, including enlargements, reductions, and a reverse "find k" problem.

**Page 6 — Topic 3 Mini-Lesson — CCSS 8.G.A.4** Indirect measurement using the shadow method, including a worked flagpole example with full cross-multiplication.

**Page 7 — Indirect Measurement Practice** 5 problems covering:

• 3 shadow-method problems • 1 mirror-method problem • 1 map-scale problem

**Page 8 — Topic 4 Mini-Lesson — CCSS 8.G.A.5** AA Similarity Criterion, why AA works using the Triangle Angle-Sum Theorem, and a worked proportions example.

**Page 9 — AA Similarity Application Set** 5 multi-step problems combining AA similarity and the Pythagorean Theorem.

**Page 10 — Mini-Quiz** 5 questions worth 10 points covering all three standards addressed in the sampler.

**Page 11 — Full Answer Key** Worked solutions for all 15 practice problems and all 5 quiz questions.

**Page 12 — Marketing Page** Information about the complete 66-page unit and direct TPT link.

🎯 CCSS STANDARDS ADDRESSED

**8.G.A.3** — Describe the effect of dilations on two-dimensional figures using coordinates.

**8.G.A.4** — Understand that a two-dimensional figure is similar to another if the second can be obtained by a sequence of rotations, reflections, translations, and dilations.

**8.G.A.5** — Use informal arguments to establish facts about the angle-angle criterion for similarity of triangles.

❤️ PERFECT FOR

• Grade 8 math classrooms • Grade 7 advanced / accelerated classes • Grade 9 geometry review / intervention • Homeschool parents teaching CCSS Grade 8 • Long-term substitute plans • Summer school / credit recovery • Trying before purchasing the full 66-page unit

⚠️ IMPORTANT — THIS IS A SAMPLER

This FREE 12-page PDF is edited down from the complete 66-page unit. It includes:

• 4 of 12 vocabulary cards • 1 of 3 worked examples per topic • 5 dilation drill problems • 5 indirect measurement problems • 5 AA application problems • A 5-question mini-quiz • Full answer key for the sampler

The complete unit contains 4 full lessons, 100+ worked examples, four full problem sets totaling 100 problems, cumulative review, a Unit Quiz, a Comprehensive Unit Test, and complete worked solutions.

📥 WHAT YOU GET

• 1 PDF • 12 pages • 362 KB • US Letter size (8.5 × 11 in) • All fonts embedded • Ready to print

⭐ WHY TEACHERS LOVE UM PRINTABLES

The sampler uses the same instructional structure as the complete unit: visual guided notes, coordinate work shown vertex-by-vertex, worked proportional reasoning, scaffolded practice, and complete solutions for the included problems.

💬 PLEASE LEAVE A REVIEW

If this free sampler is useful in your classroom, please leave a review on TPT. Your feedback helps other teachers discover the resource and supports the creation of additional classroom materials.

🔍 LOOKING FOR THE FULL UNIT?

This sampler is edited from:

**Dilations & Similarity Transformations Complete Unit | Grade 8 CCSS**

The full unit includes 66 pages of instruction, practice, assessments, teacher support, and complete solutions.

🔗 Direct link to the full unit is included on Page 12.