Math Trek 2: A Mathematical Space Odyssey

I bought "Math Trek 2" sight unseen because we'd read "Math Trek 1" from our local public library, but the library didn't have the second book in the series. While you probably should read "Math Trek 1" first, "Math Trek 2" is even better! I generally expect a sequel to be *almost* as good, so this was a surprise.I read "Math Trek 2" aloud, as bedtime reading, to my nine-year-old, who enjoyed it very much, and even proved how closely he'd been paying attention by surprising his teacher with a novel, different answer to a series question she'd posed the class, and then explaining his answer so the whole class could understand it.As an adult, I very much enjoyed such tidbits as *why* the five Platonic solids are called that, and what they meant to Plato. Reading these books is as much fun for me as it is for my child.The book is marked "Young Adult", but should be entertaining and informative to a wide range of ages. My nine-year-old would not have read it on his own if I had just left it around, though; younger kids probably need an adult's involvement.