It can feel like the holiday toy-buying gets a little out of hand this time of year.

Thats why adding a couple of STEM toys into the mix can be such a great middle ground.

You cant go wrong with Fat Brains version, theDisgusting Science Kit, which encourages both scientific learningandpotty humor.

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Itll be the beginning of their rock collection, because childhood is not childhood without a rock collection.

(TheirKidnocularsare pretty great, too.)

Its recommended for kids ages 8 and older.

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Engineering

I have to start this section with one of my all-time favorite building toys:Magna-Tiles.

Hes nine years old now.

Snap Circuits, which kids can use to build a variety of electronics projects.

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Zoobs, which click together with rounded joints that more easily allow you to bend and manipulate your creations.

It comes with four how-to designs, but kids can also create their own.

Theres also theABCs of Engineeringbook for the littlest ones.

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A is for Amplifier, B is for Battery, C is for Carnot Engine.

This book will give your infant a solid engineering foundation.

Math

You should, of course, start with theBayesian Probability for Babiesbook.

(I cant help myself; I love these so much.)

I also like theSuper Sorting Pie, which includes 60 counters (seven fruits in five different colors).

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