Using this four CD-ROM disc set, teachers can have their very own math problem solving mentor as a leading expert in Singapore Math guides them through a lively presentation, working through math problems and explaining how Singapore has become the world's leading method in math. The expert's explanation of how to use Singapore's model-drawing approach is incredibly clear and amazingly simple. This seminar is recorded from a live Web training event, which includes the expert's answers to typical teacher questions. Disc 1 contains : "Working with Whole Numbers." Disc 2 contains: "Working with Fractions." Disc 3 contains: "Working with Percents, Decimals, Ratios, and More." Disc 4 contains: Singapore Math Wrap-Up."