EIGHTH GRADE OPEN-ENDED MATHEMATICS PROBLEMS TO ENHANCE THE TEACHING OF PROBLEM-SOLVING AND WRITING IN MATHEMATICS By Ronna Ewing Eaton Fall 1995 Students are being challenged to become mathematically powerful. In order to become powerful students need to gain the ability to do purposeful and worthwhile mathematics as it relates to usefulness in life. Research shows that problem-solving increases this type of mathematical competency, and increasing the number of experiences in solving divergent problems will improve students’ problem-solving abilities. The interest a student has in the problem assigned has a direct and positive correlation as to whether the student will successfully solve the problem. The relationships between problems, problem-solving behavior, classroom environment, and students affect the outcome for successful problem-solving. The purpose of this project was to create a series of eighth grade open-ended mathematics problems. Twelve problems were designed to help eighth grade students improve their problem-solving skills. The problems address all eight strands of the Mathematics Framework for California Public Schools, (California State Department of Education, 1992). The problems were developed to provide students with writing as a tool and technique in mathematical problem-solving and to provide teachers experience with holistic scoring (rubrics). Scoring rubrics were discussed with the students and they were taught how to score problems to help improve with own abilities to respond to problem-solving in developing written communication in mathematics. Revision was encouraged to improve understanding and the overall product. The results of the field testing revealed that students profited from their experiences in writing in mathematics using constructed response answers to open-ended problem-solving experiences.