课堂教学情境是为更好地进行数学学习活动而创设的,任何与学习无关的情境都是不必要的,否则只会干扰正常的学习活动。学生有效的学习活动离不开教师的精心指导,在提倡算法多样化的同时,教师应进一步优化学生的多样化算法,并进行基本的学法指导,引导学生自我反思、比较、交流、提升。 Classroom teaching situations are created to better conduct math learning activities, and any situation unrelated to learning is unnecessary, otherwise it will only interfere with normal learning activities. Effective learning activities of students are inseparable from the careful guidance of teachers. While promoting the diversification of algorithms, teachers should further optimize the diverse algorithms of students and conduct basic learning methods to guide students to reflect, compare, exchange and improve themselves.