数学评价的主要目的“是为了全面了解学生的数学学习历程,激励学生的学习和改进教师的教学”。在数学课堂教学中,教师的评价贯穿于学生学习活动的始终。有效的教师评价,能使学生从中受到激励、启发,产生思维的火花、心灵的碰撞,从而使数学课堂精彩纷呈。这就需要教师把握评价时机,以评价开启智慧,让学生在评价中思索,在评 The main purpose of mathematical evaluation “is to fully understand the students’ mathematical learning process, encourage students to learn and improve teaching ”. In mathematics classroom teaching, the evaluation of teachers runs through the learning activities of students. Effective teacher evaluation enables students to be motivated, inspired, sparks of thinking, and collide with their minds so as to make the math class brilliant. This requires teachers to grasp the timing of evaluation in order to evaluate the wisdom to enable students to think in the evaluation of the evaluation