Grade 4 Geometry Complete Unit | 12 Lessons | 4.G

A complete 14-day Grade 4 unit covering all of CCSS 4.G — points, lines, segments, and rays; parallel and perpendicular relationships; triangle classification by sides and angles; the quadrilateral family tree; and lines of symmetry.

Built by a classroom teacher who knows geometry is where math gets visual. From spotting parallel lines in everyday objects, to classifying triangles two ways, to understanding why every square is a rectangle but not every rectangle is a square — every concept is built with clear visual support and the kind of step-by-step thinking Grade 4 students need.

Twelve fully-scripted lessons take students from basic geometric objects through complete shape classification, with a real-world performance task at the end where Mia designs a quilt block and students apply EVERY 4.G skill: identifying line relationships, classifying triangles by sides AND angles, naming quadrilaterals using the family tree, and reflecting figures across lines of symmetry.

What’s included:

• 12 lesson decks (120 slides) — fully scripted with speaker notes
• 12 worksheets (8 practice + 1 word problem + 2 bonus per lesson) + answer keys with misconception notes
• 12 exit tickets (3 questions, ~5 minutes) + answer keys with reteach suggestions
• Pre/Post Assessment — 10 questions mapped to every 4.G sub-standard
• Summative Performance Task — “Quilt Design” (5 parts, 16 points)
• Problem-Solving Rubric — 4 criteria x 4 levels
• 4 Anchor Charts — wall posters for lines & angles, triangle classification, the quadrilateral family tree, and lines of symmetry
• 14-Day Pacing Guide
• Parent Letter (editable)

Lesson sequence:

• Lesson 1. Points, Lines, Segments, and Rays (4.G.A.1)
• Lesson 2. Recognizing Angles in Figures (4.G.A.1)
• Lesson 3. Parallel and Perpendicular Lines (4.G.A.1)
• Lesson 4. Classifying Triangles by Angles (4.G.A.2)
• Lesson 5. Classifying Triangles by Sides (4.G.A.2)
• Lesson 6. Introduction to Quadrilaterals (4.G.A.2)
• Lesson 7. Parallelograms and Their Properties (4.G.A.2)
• Lesson 8. Special Quadrilaterals: Trapezoids & Kites (4.G.A.2)
• Lesson 9. The Quadrilateral Family Tree (4.G.A.2)
• Lesson 10. Lines of Symmetry (4.G.A.3)
• Lesson 11. Drawing Symmetric Figures (4.G.A.3)
• Lesson 12. Geometry Synthesis (4.G all)

Standards: 4.G.A.1 — Draw and identify points, lines, line segments, rays, angles, perpendicular and parallel lines in two-dimensional figures 4.G.A.2 — Classify two-dimensional figures based on the presence or absence of parallel/perpendicular lines or angles of a specified size 4.G.A.3 — Recognize a line of symmetry; identify line-symmetric figures and draw lines of symmetry