The question we're asked most often is a simple one:
"My child is [X] years old — which of your sets is right for them?"
It's the natural place to start. But age, on its own, turns out to be a surprisingly poor guide. Two four-year-olds can play in completely different ways: one still loves stacking towers just to knock them down, while another is already building enclosed courtyards and naming them.
What matters more than age is the stage of development a child is in right now.
Match the set to the stage, and play becomes more absorbing — and ability grows quietly, one build at a time.
Here's how we think about it.
1. Exploring with the senses
At the beginning, children may carry, touch, tap, drop, or mouth blocks. It may not look like "building" yet. But the child is learning through the body: weight, sound, texture, movement, and cause and effect.
This is the foundation of later building. Before a child builds a tower, the child first needs to know what a block feels like in the hand.
2. Stacking and knocking down
Then comes the joy of stacking.
One block on top of another. A short tower. A taller tower. Then a crash.
Knocking down is not a failure. It is part of the experiment. Children are learning balance, control, and cause and effect. What stands? What falls? What happens if I try again?
3. Bridging
A bridge is a small but important leap.
Two blocks stand apart. A third block crosses the empty space. Suddenly, the child discovers that a structure can hold even when there is nothing underneath the middle.
This is an early lesson in space, support, and imagination. A bridge can become a gate, a tunnel, a doorway, or a road into a story.
4. Making enclosures
At some point, children begin to place blocks around an area. They create a wall, a yard, a room, or a garden.
Now the child is thinking about inside and outside. Space is no longer only height. It has boundaries. It can hold something. It can become a place.
5. Patterns, balance, and symmetry
As children grow, their structures often become more balanced and intentional. They may repeat shapes, match both sides, create rhythms, or adjust a structure until it feels "right".
This is not only engineering. It is also the beginning of visual judgment.
6. Naming and pretending
A child may point to a structure and say:
"This is a castle."
"This is a zoo."
"This is a house."
Sometimes the name comes after the building. Sometimes the story changes while the child builds. Blocks become a language for imagination.
7. Building a world
Later, children begin to plan richer scenes. A tower belongs near a bridge. A road connects to a gate. A garden needs trees. A story needs a place to happen.
At this stage, blocks are no longer only pieces. They become a world the child can arrange, rebuild, and explain in their own words.
So how do you actually choose?
The honest answer: don't ask "what should a child this age play with?" Ask "what ability is my child developing right now?"
Some children are three and still happily stacking. Some are five and obsessed with enclosing space. Both are completely normal. Development isn't a progress bar, and no child reads the chart. The aim isn't to push them to the next stage — it's to give them the right material for the stage they're enjoying today.
That's exactly how we designed the three sets in Echoes of the East. They aren't simply small, medium, and large. They follow the same arc a child does:
Reference:
Cohen, L., & Uhry, J. (2007). Young children's discourse strategies during block play: A Bakhtinian approach. Journal of Research in Childhood Education, 21(3), 302-315.
Casey, B., & Bobb, B. (2003). Early childhood corner: The power of block building. Teaching Children Mathematics, 10(2), 98-102.
Casey, B. M., Andrews, N., Schindler, H., Kersh, J. E., Samper, A., & Copley, J. (2008). The development of spatial skills through interventions involving block building activities. Cognition and Instruction, 26(3), 269-309.
Keen, R. (2011). The development of problem solving in young children: A critical cognitive skill. Annual review of psychology, 62(1), 1-21.