估算在学生的学习和日常生活中有着十分广泛的应用。因此,估算意识、学习能力的培养是学生数学学习的需要,是适应现实生活的需要,更是训练思维、智力发展的需要。采用优化教学策略,提供现实生活情境等方法,强化学生的估算意识,培养他们自觉养成估算的习惯、估算能力,达到优化估算的策略。 Estimation has a very wide range of applications in student learning and daily life. Therefore, the assessment of consciousness, the cultivation of learning ability is the needs of students learning mathematics, is to adapt to the needs of real life, but also the training of thinking, intellectual development needs. Optimize the teaching strategies to provide real-life situations and other methods to strengthen the students’ sense of estimation, to develop their consciously develop the habit of estimation, estimation ability, to optimize the estimation strategy.