Start with the base: 2D or 3D?
The IO Blocks Tabletop System is designed for open-ended building. The square, double-sided base pieces interlock in a variety of ways, so you can create a flat base for horizontal building or a raised structure for vertical play. Let your child decide whether to start with a 2D platform or a 3D frame—both support the IO Blocks and gears that come with the set.
How to set up a STEM building session
A simple setup keeps the focus on problem-solving. Use the activity cards to introduce a challenge, then let your child explore freely.
- Choose a base layout: Interlock the puzzle-like base pieces to form a flat square or a raised structure. The bases are double-sided, so flipping them changes the building surface.
- Add IO Blocks and gears: Attach IO Blocks to the base to create walls, towers, or supports. Connect gears to explore how they mesh and turn together.
- Introduce a challenge: Use the included activity cards to prompt engineering tasks, like building a bridge or a gear-driven spinner. Let your child experiment with ratios and gear sizes.
- Build horizontally and vertically: Encourage your child to build out and up. The base pieces support both directions, so kids can test how height affects stability.
- Incorporate imaginative play: Add the little IO people and cows to bring the build to life. This encourages storytelling and extends the play session.
Engineering challenges and ratio exploration
The IO Blocks Tabletop System is built for engineering challenges and ratio exploration. Kids can connect gears of different sizes to see how rotation speed changes, or design a base that supports a tall tower. These hands-on experiments teach cause and effect without a screen.
What the IO Blocks Tabletop System offers
- IO Blocks® Tabletop System: The IO Blocks Tabletop System includes square, double-sided, puzzle-like base pieces that interlock to create a 2D or 3D base. This flexibility lets kids build both horizontally and vertically, supporting a wide range of STEM challenges.

IO Blocks® Tabletop System - IO Blocks® Tabletop System: The set includes activity cards to guide play. Activity cards give parents and teachers ready-made prompts for engineering and ratio exploration.
- IO Blocks® Tabletop System: Little IO people with unique accessories and IO cows add imaginative play. Storytelling elements keep kids engaged and encourage them to test their builds in creative scenarios.
- IO Blocks® Tabletop System: The system is designed for ages 3+. It's a suitable STEM toy for preschool and early elementary children, with adult supervision for younger builders.
Combine with existing IO Blocks sets
If you already own IO Blocks, the Tabletop System easily incorporates with them for endless build possibilities. Mixing sets expands the number of blocks and gears available, so kids can tackle larger projects or collaborate on a shared design.
Practical tips for parents and teachers
- Start with a simple base: For younger children, a flat 2D base is easier to build on. As they gain confidence, introduce vertical supports.
- Let kids lead the challenge: Ask open-ended questions like 'What happens if you use a bigger gear?' rather than giving direct instructions.
- Use the activity cards as a springboard: The cards provide structure, but kids can also invent their own engineering goals.
- Clean up is easy: The durable, easy-to-clean materials make the set practical for home and classroom use.
When the IO Blocks Tabletop System fits best
This set shines in settings where kids can build freely and experiment with cause and effect. It's a strong choice for preschool classrooms, STEM centers, or rainy-day activities at home. Because it's designed for ages 3+, it's also a good first building system for young engineers.


