Matematica 1 is the first book of a mathematics program in Portuguese "designed for first graders." The book contains 15 chapters dealing with: sets, numeration, place value, numbers from 0 through 99, addition and subtraction, geometric shapes, measurements (money, time, length), fractions, word problems, and commutative and associative properties. The book provides a pictorial introduction to each new concept, sample and practice exercises, and end of chapter reviews and tests. Copies available from the publisher have perforated pages so that pages can easily be removed for correcting by the teacher. (RH)