A complete 14-day Grade 4 unit covering all of CCSS 4.OA — multiplicative comparisons, factors and multiples, primes, patterns, and the bridge from arithmetic to algebra. Built by a classroom teacher who knows that 4.OA is where students start to think mathematically, not just compute.

This is the comprehensive 4.OA unit. From recognizing comparisons in word problems, to finding factor pairs of any number, to identifying patterns and solving two-step equations, every concept is built with clear language and visual support Grade 4 students can follow.

Twelve fully-scripted lessons take students from multiplicative comparison through pattern rules, with a real-world performance task at the end where Mia runs a school bake sale and students use comparisons, factor pairs, multi-step problems, and patterns to budget, plan, and predict.

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.OA sub-standard
• Summative Performance Task — “Bakery Math” (5 parts, 16 points)
• Problem-Solving Rubric — 4 criteria x 4 levels
• 4 Anchor Charts — wall posters for comparison, multi-step, factors, patterns + equations
• 14-Day Pacing Guide
• Parent Letter (editable)

Lesson sequence:

• Lesson 1. Multiplicative Comparison Basics (4.OA.A.1)
• Lesson 2. Multiplicative Comparison Word Problems (4.OA.A.2)
• Lesson 3. Multi-Step Word Problems with Four Operations (4.OA.A.3)
• Lesson 4. Interpreting Remainders in Context (4.OA.A.3)
• Lesson 5. Factors of Whole Numbers (4.OA.B.4)
• Lesson 6. Multiples of Whole Numbers (4.OA.B.4)
• Lesson 7. Prime and Composite Numbers (4.OA.B.4)
• Lesson 8. Number Patterns (4.OA.C.5)
• Lesson 9. Shape Patterns (4.OA.C.5)
• Lesson 10. Generating Patterns with Rules (4.OA.C.5)
• Lesson 11. Two-Step Equations & Unknowns (4.OA.A.3)
• Lesson 12. Real-World OA Synthesis (4.OA all)

Standards: 4.OA.A.1 — Interpret multiplication equation as comparison 4.OA.A.2 — Multiply or divide to solve comparison word problems 4.OA.A.3 — Solve multi-step word problems using four operations 4.OA.B.4 — Find factor pairs. Identify multiples. Prime or composite. 4.OA.C.5 — Generate and analyze number and shape patterns