With the guidance of a talkative red dot, the young mathematician is introduced to some powerful math concepts in Graph Games. At first, children playing in a yard are represented graphically as dots. Then, by drawing arrows and using colours on his own graph, the reader can deduce a surprising amount of information about the dots. By playing point to your sisters and then point to your brothers, he can discover which dots are boys and which are girls. The logic is uncomplicated, and the text and diagrams give plenty of help,