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Best STEM Toys and Building Sets to Buy Toys for Builders, Coders, and Tinkerers

Five STEM picks for parents: a 221-piece LEGO Classic brick box, a 100-piece clear magnetic tile set, Snap Circuits Jr. with 100+ circuit projects, Botley's 77-piece screen-free coding robot set, and the National Geographic Mega Science Lab with 45 experiments in the box. Each one picked for the specs it actually publishes - piece counts, ages on the box, and what's in the box.

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The roundup

LEGO Classic Creative Bricks 10692 Building Blocks, Learning Toy (221 Pieces)

  • 221 pieces in 29 colors
  • special pieces include 2 sets of eyes, windows, 2 types of door, wheels, axles, and propellers
  • brick separator included
Check the current price on Amazon

Prices change often — the live price is on the Amazon page.

PicassoTiles 100 Piece Set 100pcs Magnet Building Tiles Clear Magnetic 3D Blocks

  • 100 clear magnetic tiles (model PT100)
  • magnet-connected 3D building blocks for open-ended construction
  • easy to put together and put away
Check the current price on Amazon

Prices change often — the live price is on the Amazon page.

Snap Circuits Jr. SC-100 Electronics Exploration Kit, Over 100 Projects, Full Color

  • 100+ electronic projects from one box
  • snap-grid with color-coded, numbered pieces - no soldering, no tools
  • full-color project manual with step-by-step instructions
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Prices change often — the live price is on the Amazon page.

Learning Resources Botley The Coding Robot Activity Set - 77 Pieces, Ages 5+, Screen-Free

  • 77-piece set: Botley coding robot, remote programmer, detachable robot arms, 40 coding cards, 6 double-sided tiles, 27 obstacle-building pieces, starter guide with coding challenges
  • screen-free coding - no phone or tablet needed
  • up to 80-step sequences, looping commands, black-line follow mode, obstacle detection
Check the current price on Amazon

Prices change often — the live price is on the Amazon page.

National Geographic Mega Science Lab - Kit for Kids with 75 Easy Experiments, Featuring

  • 45 Earth science, chemistry, and science-magic experiments in the box plus a guide with 85+ more experiments using common household items
  • build and erupt a volcano, grow a glow-in-the-dark crystal, dig up a real amethyst specimen
  • illustrated step-by-step instructions
Check the current price on Amazon

Prices change often — the live price is on the Amazon page.

Keep going

Supplies are the start — here's where they lead.