Diploma Thesis from the year 2016 in the subject Pedagogy - Common Didactics, Educational Objectives, Methods, course: Master of Arts in Education major in Mathematics, language: English, abstract: This study aimed at assessing game-based instruction in improving mathematics performance in problem-solving and the development of problem-solving skills. Results show that in the two groups, the level of students' learning using the game-based problem-solving in teaching appeared to have a fair performance compared to that of the conventional method. This implied that using the game-based problem-solving in teaching mathematics is more effective than employing the conventional method. Thus, the use of game-based problem-solving in teaching mathematics can improve the performance of the students in Mathematics.