Tweens (9–12): complex building, tech, games

Thames & Kosmos Structural Engineering: Bridges & Skyscrapers

Thames & Kosmos Structural Engineering: Bridges & Skyscrapers (285+ pieces, ages 8–14) — about $40–$45 · 4.6 stars.

Build 20 models and learn real force, load, compression, and tension; a Parents’ Choice Gold winner. The blind-buyer angle: large structural builds are tactile and endlessly discussable, there are no batteries, and you can test “will it hold?” by touch. Caveat: the 36-page manual is illustrated — visual again.

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