Products

All is calm in the warlord's palace, and the artist's apprentice Chuan sits with his friend Jing Jing, watching the sunset, when an invading army approaches. Jing Jing comes up with an ingenious solution using Chuan's knowledge of calculating area as well as his handmade paper and ink to frighten the troops into leaving.

The warlord's presence is requested at the emperor's banquet in two weeks, but he is sixteen days away by horseback. Using their math skills, ingenuity, and the wind, Chuan and Jing Jing reach the warlord's camp and encourage him to use their sailing cart to travel to the feast. The Warlord's Messengers is the sixth book in the acclaimed Warlord's Series, and includes directions for making your own windsock as well as suggestions for velocity-related math activities.

Chuan helps readers learn about ratios to craft puppets.

A young peasant boy convinces his poor but wise father to enter a contest to solve the warlord's puzzle, which is actually the original tangram. Recommended by the Califorina Department of Education.