Nowadays, many teachers realize that in teaching, we should not only implement the teaching goal of knowledge and skills, but also pay attention to the cultivation of students' ability in the learning process. For example, cultivating students' sense of numbers in the teaching of "Numbers and Algebra". Angie Riley, a British mathematics educator, said: "The typical feature of children's sense of numbers is that they can reduce the number patterns and calculation processes they encounter and connect new knowledge with existing knowledge." Then, in the teaching process of digital recognition and digital operation, how to induce and establish contact, so as to cultivate students' sense of numbers?
First of all, attract students' common realistic situations and enrich their sense of numbers. For example, shopping, sharing cakes, tailoring and so on can stimulate students' interest. We can borrow various concrete "quantities" to help students understand abstract "numbers" and build models of related numbers.
Secondly, the hidden "sense of number" is revealed through the activity of "number". For example, when you know the number within 100, ask students to count them one by one with specific objects; In the understanding of large numbers, please count 1 1 10,000 or 1 1 10,000 on the number axis. When learning the meaning of fractions, students calculate fractions by imitating the method of calculating natural numbers and so on.
To cultivate students' sense of number is to pay attention to the relationship between number and life, between intuitive quantity and independent number, and between feeling and thinking. Only in this way can students be deeply impressed with numbers and turn this seemingly illusory feeling into a "real" ability.
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