"Someone is trying to steal a famous treasure from the museum of mysteries, and the reader must prevent the theft by using math to solve number puzzles involving number patterns, factors and primes, fractions, place values, and more"--Provided by publisher.

Unlocks the power of approximation-- popular mathematics rounded to the nearest power of ten. The ability to estimate is an important skill in daily life.

Presents an introduction to the concept of placing things in sequence, in simple text with illustrations, as a young boy puts a collection of photos from his cousin into chronological order.

The acclaimed bestseller about visual problem solving-now bigger and better
"There is no more powerful way to prove that we know something well than to draw a simple picture of it. And there is no more powerful way to see hidden solutions than to pick up a pen and draw out the pieces of our problem."
So writes Dan Roam in The Back of the Napkin, the international bestseller that proves that a simple drawing on a humble napkin...

Blue's school: Blue and Steve are playing school. Something to do: Blue and Steve are looking for something to do and Mr. Salt has just the right recipe. Rhyme time: Steve's playing poet, but what does Blue want to rhyme about? Puppets: Blue wants to tell a story with puppets. Promotes: beginning reading and comprehension; color-mixing skills; preschool rituals; creative problem solving; construction and combination.

A young girl uses data-collecting and problem-solving skills to determine where her family should go for a vacation.

"Help the STEM Detectives find one of their team members. Robot iGumbo has gone missing. Bring your skills in mapping, finding bugs in instructions, and turning back time. Grab your notepad and start investigating!"--