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Hands-on STEM that builds spatial smarts and problem-solving power through 60 projects.

$124.99
$129.99
Save $5

Complete Course

In a Curriculum Kit

Nonconsumable

Nonreligious
Due to limited quantities, this item is only available as part of a curriculum kit.

2025 Pre-K Curriculum Kit
ThinkPlay STEM Junior Xtra
ThinkPlay STEM Junior Xtra hands your pre-K engineer-in-training the ultimate set of click-together bricks, twisty connectors, and imagination fuel. With 400 durable pieces and over 60 models to build, this award-winning kit isn't just fun—it's sneaky-smart.
Before the first brick even snaps into place, your child practices visual matching by lining up the right shapes on the page—easy prep that builds confidence fast. Then it's on to the main event: following real-life photo instructions to build cars, animals, machines, and more, with each design getting just a little trickier (in the best way).
What Sets This Set Apart?
- The bricks connect tightly, but are easy for little hands to work with.
- The special "T" and "r" connectors open the door to turning, stacking, and switching directions—perfect for big ideas with wobbly hands.
- They fit Duplo, but with way more design options.
From fine motor practice to spatial reasoning and problem-solving, ThinkPlay STEM Junior Xtra is all about building skills while your child builds wild and wonderful creations. Colors may vary, but the grins won't.

