Adler, David A

Eric's Grandma Minnie and Grandpa Max keep hearing someone knock at their door, night and day, but find no one there, so Cam tries to solve the mystery using her amazing memory.

"This introduction to the mathematical estimating and rounding explains the difference between the two, their uses, and gives directions for estimating and rounding"-- Provided by publisher.

"Mo Jackson is excited for his baseball game, but Coach Marie tells him he is batting last and playing right field, again. Will Mo ever get a hit?"--Provided by publisher.

A beginning guide to economics that introduces young learners to the purpose and value of money.

"Introduces children to American currency values and the basics of adding and subtracting money."--.

Using her excellent memory, Cam Jansen, aided by her friend Eric, investigates the disappearance of Mrs. Scott's valuable pearl necklace during a charity brunch.

While Cam's Aunt Molly is competing in a comedy contest, the expensive plate the winner will receive disappears and Cam and Eric set out to find it before the contest is over.

The ever-quirky Calvin convinces Danny to help him start a rent-a-pet business when Calvin's Aunt Ruth asks the boys to watch her miniature collie while she is away, but first they will have to find a renter.

Traces the life and achievements of the architect, bibliophile, president, and author of the Declaration of Independence.