This booklet, written in Spanish, provides a guide for parents to help their children become successful in school mathematics. The information is divided into four sections: (1) important facts about the mathematics curriculum and mathematics instruction; (2) expectations about participation, calculators, cooperative learning, dialogue, and writing within the typical K-12 mathematics classrooms; (3) examples of leading questions and prompts for parental input with homework; and (4) specific methods to aid in planning for student success in mathematics. A bibliographic appendix includes additional sources for information with addresses, phone numbers, and price quotations, as appropriate. (JJK)