In this groundbreaking book with CD-ROM, a rubber duck factory owner expands his business to meet the demand for more rubber ducks, only to find his additional smokestacks are polluting the sky. But the clever little man comes up with an energy-saving solution that keeps the assembly lines rolling, the sun shining, and everybody smiling. Full color.
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In this groundbreaking book with CD-ROM, a rubber duck factory owner expands his business to meet the demand for more rubber ducks, only to find his additional smokestacks are polluting the sky. But the clever little man comes up with an energy-saving solution that keeps the assembly lines rolling, the sun shining, and everybody smiling. Full color.
Read Less