Week 40: The Developmental Importance and Stages of Playing with Blocks
As your baby nears the 10-month (Week 40) milestone, a world of cognitive, emotional, and physical growth opens up. This is the perfect time to introduce one of the most enriching, developmentally supportive toys: blocks. What may look like simple wooden or plastic shapes are, in reality, the building blocks of creativity, motor coordination, problem-solving, and social development.
In this in-depth guide, we’ll explore why playing with blocks is so critical in early childhood, particularly around week 40, and unpack the stages of block play your child will go through. You’ll also learn how this play evolves with time and how to foster block-based learning at home.
Let’s stack up the benefits, stage by stage.
Why Blocks? The Profound Simplicity of Block Play
Blocks are far more than toys. They are multi-sensory tools that promote a wide array of developmental skills:
1. Cognitive Growth
At around 40 weeks, babies begin to understand cause and effect. When they knock down a stack of blocks, they learn that their actions have outcomes. Over time, they start to problem-solve — figuring out which block goes where and why a stack might fall.
2. Fine Motor Skills and Hand-Eye Coordination
Grasping, stacking, and manipulating blocks helps strengthen tiny fingers and improve coordination. These activities are crucial for writing, drawing, feeding, and self-care skills later in life.
3. Spatial Awareness and Geometry
Block play introduces early geometry concepts. Children begin to understand balance, symmetry, and spatial relationships, all while enhancing their visual-motor integration.
4. Language and Communication
As caregivers or peers describe the colors, shapes, or actions (“Let’s stack the red one”), babies connect words with objects, expanding vocabulary and comprehension.
5. Social and Emotional Learning
Eventually, block play becomes a group activity. Children learn sharing, turn-taking, and how to collaborate on construction. It builds patience and emotional resilience, especially when towers fall!
Week 40: The Right Time for Block Exploration
At 40 weeks, most babies are on the cusp of mobility milestones like crawling or cruising. Their pincer grasp is developing, allowing them to pick up smaller objects more accurately. They’re also starting to imitate adult behavior and engage more purposefully with toys.
This stage is ideal for introducing soft blocks, nesting cups, or wooden cubes. These provide the perfect mix of sensory exploration and physical engagement without posing safety risks.
Pro Tip: Opt for blocks that are soft, easy to hold, and visually engaging. Try blocks with different textures, colors, and sounds to stimulate multiple senses.
The 6 Recognized Stages of Block Play
According to developmental theorists and early childhood educators, block play follows six progressive stages. Understanding these helps caregivers provide age-appropriate materials and experiences.
1. Carrying (Around 6–12 Months)
What it looks like: Your baby picks up, holds, mouths, or bangs blocks. There’s little stacking — it's mostly about grasping and exploring.
Why it matters: This is foundational. It develops grip strength, spatial awareness, and introduces babies to cause and effect. For instance, when a block makes a sound as it hits another surface, the baby connects action to outcome.
What to do: Offer larger, soft blocks. Let them explore freely, supervise closely, and model how to move or tap blocks together.
2. Stacking (Around 12–18 Months)
What it looks like: Your toddler may start placing one block on top of another — usually two or three before toppling.
Why it matters: This is where fine motor skills kick in more robustly. Your child is learning balance, patience, and a deeper sense of control.
What to do: Praise effort, not outcomes. Celebrate attempts to stack, even if the tower falls immediately. Use colorful, lightweight blocks and keep stacking challenges simple.
3. Bridging (Around 2–3 Years)
What it looks like: Children begin placing two blocks with a gap and connecting them with a third — creating a bridge.
Why it matters: Bridging involves planning, prediction, and spatial reasoning. It’s an early sign of logical thinking.
What to do: Add different shapes like arches or rectangular blocks. Ask questions like, “What happens if we use a bigger block in the middle?”
4. Enclosures (Around 3 Years)
What it looks like: Kids begin enclosing spaces — building fences, homes, or “zoos” for figurines.
Why it matters: Enclosure play reflects imaginative thinking, storytelling, and understanding boundaries.
What to do: Encourage your child to use blocks with figurines, cars, or animals. Ask them what they’re building and why. This fosters language development and narrative thinking.
5. Structures (Around 4 Years)
What it looks like: Complex constructions emerge — castles, garages, cities. There's intent and often a story behind each build.
Why it matters: Structure building integrates creativity, problem-solving, and symbolic thinking. Kids replicate real-world architecture and use blocks as tools for expression.
What to do: Introduce more diverse block sets and themes (e.g., roads, windows, characters). Prompt with challenges: “Can we build a bridge that holds your toy car?”
6. Dramatic Play (4.5+ Years)
What it looks like: Block play becomes the backdrop for imaginative scenarios — blocks are houses, spaceships, or even pizza ovens.
Why it matters: This integrates social, cognitive, and emotional growth. Children use blocks as symbols, practicing adult roles and abstract thinking.
What to do: Encourage open-ended play. Avoid directing too much. Ask open-ended questions like “What’s happening in your city?” to expand their ideas.
Practical Tips to Support Block Play at Home
Whether your baby is just exploring or building elaborate creations, here’s how to maximize the benefits of block play:
Rotate the Types of Blocks
Use a mix: foam blocks, stacking cups, magnetic blocks, and wooden cubes. Each stimulates different sensory and cognitive processes.
Create a Safe Play Space
Use a soft mat or rug to cushion falls and offer a stable surface for stacking.
Join In
Model play by stacking a few blocks or building alongside your child. But let them lead the process.
Add Vocabulary
Describe actions (“You’re building high!”), colors (“That’s a blue block”), and concepts (“This tower is tall!”) to reinforce language development.
Embrace Mess and Failure
Falling towers are part of the learning. They teach resilience, problem-solving, and experimentation.
Conclusion: More Than Just Toys
Block play isn’t about just passing time — it’s an early form of STEM learning, creativity, emotional regulation, and social skill-building. By Week 40, even the smallest interaction with a block can spark neurological connections that shape how your child understands the world.
Every block placed, every tower toppled, and every shape explored builds toward lifelong learning.
Want to dive deeper into how block play transforms childhood development?
Read the full guide on MonkiBox for more insights, curated toy suggestions, and developmental tips from experts.
FAQs About Block Play
Q1: When should I introduce block play to my baby?
You can introduce soft, large blocks as early as 6 months. By Week 40 (around 9–10 months), babies are developmentally ready to engage more actively with blocks through banging, exploring, and eventually stacking.
Q2: What types of blocks are best for a 10-month-old?
At this stage, opt for foam, cloth, or plastic blocks that are soft, lightweight, and too large to swallow. Sensory blocks with textures, rattles, or high-contrast colors are ideal.
Q3: My baby just bangs the blocks together. Is that normal?
Yes, absolutely! Banging is a form of exploratory play that teaches sound, cause and effect, and coordination. It's a key part of the “carrying” stage.
Q4: How can I make block play more engaging?
Join in the play, describe actions, and occasionally model stacking or sorting. Rotate the types of blocks available and allow your child the freedom to explore creatively.
Q5: Are digital block games as effective as physical ones?
While digital games can help with pattern recognition or early coding, nothing replaces the tactile and spatial learning that comes with physical block manipulation, especially in the first few years.
Q6: What should I do if my toddler gets frustrated when blocks fall?
Acknowledge their frustration calmly (“That can be frustrating, huh?”), then model trying again. Help them see that failure is part of learning. Over time, they’ll build patience and persistence.
Q7: Can block play help with school readiness?
Yes. It fosters early math concepts, language development, focus, collaboration, and creative thinking — all foundational for school success.











