Tess has always loved math, and she uses mathematical concepts to help her understand things in her life, so she is dismayed to find out how much math--and life--can change in eighth grade.

Presents a collection of eighteen brief folktales in which the reader is asked to explain how the folk character lied and told the truth at the same time.

Big, bad Tyrone the dinosaur wins all the games at Swamp Island by cheating until he foils his own attempt to cheat in the treasure hunt.

The fish in Puffer's class at school realize that his stories are exaggerated and sometimes untrue.

Harriet feels terrible until she confesses to trampling on a neighbor's garden and ruining a prize dahlia.

Ernie enters a painting by his cousin Fred in a contest in order to win a box of paints.

Nina creates a problem for herself when she tells her friends that she will be a star in the upcoming ballet performance and they misunderstand her.

"Why do we lie? What types of lies are there? What are the consequences of lying? What methods are used to detect lies? And when is it okay or even good to lie? From forgeries and hoaxes to plagiarism and placebos, [this book] offers historical anecdotes, scientific studies, and sociocultural analyses to help unpack the complex world of untruths"--Amazon.com.

In this Mexican folktale, a lazy boy learns a lesson about lying.