This color by number of one of Leonardo da Vinci's paintings, Lady with an Ermine, is a fun way for kids to practice multiplication and learn a little bit about art at the same time. It comes in three different levels. The beginner level has one digit by one digit multiplication. The intermediate level has one digit by two and three digit multiplication. The advanced level has two digit by two and three digit multiplication.

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Two years as a teaching assistant in a Montessori classroom and two years as a teacher in a large, under funded school where 76% of the school is considered poor and 96% is a minority. It's great fun, though.
