The Carmen Sandiego series are spy adventure programs. Carmen devises an evil plot and you are challenged to stop her. In Math Detective, she shrinks many of the world's famous sites such as the Great Wall of China, Grand Canyon, Mount Everest and Ayers Rock exercises skills in addition, subtraction, multiplication, division, estimating, converting fractions and decimals, calculating percentages, geometry. Teaches 34 math strategies that can be used to solve these types of math questions.