This study was to investigate the current mathematical teaching and learning beliefs of teachers in elementary schools, junior high schools and senior high schools. The methodology was based on a survey and the questionnaire was designed by the researchers. The results revealed that constructivist perspective was more acceptable to mathematic teachers in elementary schools. They thought, for example, the purpose that students learn mathematics was to solve the problems in daily life. In their opinions, students had the ability to solve mathematical problems on their own as well as the motivation to learn. They believed mathematic teaching activities should be combined with daily life and valued by means of the formative assessment. On the contrary, mathematical teachers in junior and senior high schools held the different idea that the purpose of students’ mathematical learning was to increase their ability of logic thinking. Constructivist perspective was less acceptable to high school teachers. Most of them thought students had neither the ability to solve problems on their own nor the motivation to learn. In additions, high school teachers valued learning outcome and test scores a great deal. Though teachers in elementary schools, junior, and senior high schools had different acceptance about constructivist perspective, they all gradually agreed that passing entrance examinations wasn’t the main purpose of mathematical learning. According to the research results, the researchers brought out several suggestions and research directions for mathematical teacher education.