If you’re teaching kindergarten students to compose and decompose numbers to 10 and noticing that they can identify numbers but struggle to model part-part-whole relationships, you are not alone. Many early math activities focus on solving equations, but skip the most important step: helping students understand how numbers are made.
Students don’t need more worksheets showing number bonds — they need hands-on experiences building them.
This resource gives you a clear, developmentally aligned pathway for teaching part-part-whole relationships and number bonds through manipulatives, visuals, and consistent routines that help students make sense of the math — not just fill in blanks.
You’ll get a step-by-step sequence that teaches composing and decomposing the way research supports it: hands-on, meaningful, and connected to real math thinking.
🎒 What’s Inside
✔ 10 whole-group lessons
✔ 10 matching small-group lessons
✔ Hands-on manipulatives & mats (number bonds, part-part-whole, build & record tasks)
✔ Built-in differentiation prompts (support + stretch)
✔ Visual anchor charts & mini-lessons
✔ Student-friendly directions
✔ Quick checks for progress
✔ Engaging math centers aligned to the lessons
Everything follows the same predictable routine — so students feel confident, and you feel prepared.
🧠 Skills Covered
These lessons scaffold composing and decomposing from simple to complex, including:
Part-Part-Whole relationships
Building the same number in multiple ways
Number bonds with concrete → pictorial → abstract models
Recording thinking with matching number sentences
Understanding that parts change, but the whole stays the same
Foundations for addition and subtraction
🧩 Perfect For
Kindergarten math
Pre-K readiness & enrichment
Small-group instruction
Math intervention (K–1)
Guided math groups
Math centers
RTI/MTSS
SPED & emerging learners
Homeschool
📌 Aligned Standards
Common Core
K.OA.A.1, K.OA.A.3, K.OA.A.4
TEKS
K.3B (Compose and decompose numbers up to 10)
Pre-K Guidelines
Build & break apart sets; represent numbers in multiple ways
1st Grade Intervention Connection
1.OA.A.1, 1.OA.A.3
💛 Why Teachers Love Number Sense Builders™
➡️ Research-based, written in real-teacher language
➡️ Lessons build — they don’t just repeat the same task
➡️ Hands-on routines mean faster learning with confidence
➡️ Minimal prep — print once, reuse all year
➡️ Centers match the lessons (no guessing which activity fits)
You’ll finally feel like composing and decomposing numbers isn’t just a worksheet task — it’s the foundation of real math understanding.
✨ Ready to Build Strong Math Thinkers?
Add Number Sense Builders™: Part-Part-Whole & Number Bonds to your cart and teach tomorrow — with zero extra planning.
